INDICATIONS & USAGE SECTION.


1 INDICATIONS AND USAGE. Doxorubicin Hydrochloride Injection is an anthracycline topoisomerase inhibitor indicated:as component of multiagent adjuvant chemotherapy for treatment of women with axillary lymph node involvement following resection of primary breast cancer (1.1).for the treatment of: acute lymphoblastic leukemia, acute myeloblastic leukemia, Hodgkin lymphoma, Non-Hodgkin lymphoma, metastatic breast cancer, metastatic Wilms tumor, metastatic neuroblastoma, metastatic soft tissue sarcoma, metastatic bone sarcomas, metastatic ovarian carcinoma, metastatic transitional cell bladder carcinoma, metastatic thyroid carcinoma, metastatic gastric carcinoma, metastatic bronchogenic carcinoma (1.2).. as component of multiagent adjuvant chemotherapy for treatment of women with axillary lymph node involvement following resection of primary breast cancer (1.1).. for the treatment of: acute lymphoblastic leukemia, acute myeloblastic leukemia, Hodgkin lymphoma, Non-Hodgkin lymphoma, metastatic breast cancer, metastatic Wilms tumor, metastatic neuroblastoma, metastatic soft tissue sarcoma, metastatic bone sarcomas, metastatic ovarian carcinoma, metastatic transitional cell bladder carcinoma, metastatic thyroid carcinoma, metastatic gastric carcinoma, metastatic bronchogenic carcinoma (1.2).. 1.1 Adjuvant Breast Cancer. Doxorubicin Hydrochloride Injection is indicated as component of multi-agent adjuvant chemotherapy for treatment of women with axillary lymph node involvement following resection of primary breast cancer. 1.2 Other Cancers. Doxorubicin Hydrochloride Injection is indicated for the treatment ofacute lymphoblastic leukemiaacute myeloblastic leukemiaHodgkin lymphomanon-Hodgkin lymphoma (NHL)metastatic breast cancermetastatic Wilms tumormetastatic neuroblastomametastatic soft tissue sarcomametastatic bone sarcomametastatic ovarian carcinomametastatic transitional cell bladder carcinomametastatic thyroid carcinomametastatic gastric carcinomametastatic bronchogenic carcinoma. acute lymphoblastic leukemia. acute myeloblastic leukemia. Hodgkin lymphoma. non-Hodgkin lymphoma (NHL). metastatic breast cancer. metastatic Wilms tumor. metastatic neuroblastoma. metastatic soft tissue sarcoma. metastatic bone sarcoma. metastatic ovarian carcinoma. metastatic transitional cell bladder carcinoma. metastatic thyroid carcinoma. metastatic gastric carcinoma. metastatic bronchogenic carcinoma.

CONTRAINDICATIONS SECTION.


4 CONTRAINDICATIONS. Doxorubicin Hydrochloride Injection are contraindicated in patients with:Severe myocardial insufficiency [see Warnings and Precautions (5.1)] Recent (occurring within the past 4-6 weeks) myocardial infarction [see Warnings and Precautions (5.1)] Severe persistent drug-induced myelosuppression [see Warnings and Precautions (5.4)] Severe hepatic impairment (defined as Child Pugh Class or serum bilirubin level greater than mg/dL) [see Warnings and Precautions (5.5)] Severe hypersensitivity reaction to doxorubicin hydrochloride including anaphylaxis [see Adverse Reactions (6.2)] Severe myocardial insufficiency [see Warnings and Precautions (5.1)] Recent (occurring within the past 4-6 weeks) myocardial infarction [see Warnings and Precautions (5.1)] Severe persistent drug-induced myelosuppression [see Warnings and Precautions (5.4)] Severe hepatic impairment (defined as Child Pugh Class or serum bilirubin level greater than mg/dL) [see Warnings and Precautions (5.5)] Severe hypersensitivity reaction to doxorubicin hydrochloride including anaphylaxis [see Adverse Reactions (6.2)] Severe myocardial insufficiency (4).Recent myocardial infarction (4).Severe persistent drug-induced myelosuppression (4).Severe hepatic impairment (4).Severe hypersensitivity to doxorubicin hydrochloride (4).. Severe myocardial insufficiency (4).. Recent myocardial infarction (4).. Severe persistent drug-induced myelosuppression (4).. Severe hepatic impairment (4).. Severe hypersensitivity to doxorubicin hydrochloride (4).

ADVERSE REACTIONS SECTION.


6 ADVERSE REACTIONS. The following clinically significant adverse reactions are described elsewhere in the labeling.Cardiomyopathy and Arrhythmias [see Warnings and Precautions (5.1)] Secondary Malignancies [see Warnings and Precautions (5.2)] Extravasation and Tissue Necrosis [see Warnings and Precautions (5.3)] Severe Myelosuppression [see Warnings and Precautions (5.4)] Tumor Lysis Syndrome [see Warnings and Precautions (5.6)] Radiation Sensitization and Radiation Recall [see Warnings and Precautions (5.7)] Cardiomyopathy and Arrhythmias [see Warnings and Precautions (5.1)] Secondary Malignancies [see Warnings and Precautions (5.2)] Extravasation and Tissue Necrosis [see Warnings and Precautions (5.3)] Severe Myelosuppression [see Warnings and Precautions (5.4)] Tumor Lysis Syndrome [see Warnings and Precautions (5.6)] Radiation Sensitization and Radiation Recall [see Warnings and Precautions (5.7)] The most common (>10%) adverse reactions are alopecia, nausea and vomiting (6.1).To report SUSPECTED ADVERSE REACTIONS, contact Pfizer, Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.. 6.1Clinical Trials Experience. Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.. Breast CancerThe safety data below were collected from 1492 women who received doxorubicin hydrochloride at dose of 60 mg/m2 and cyclophosphamide at dose of 600 mg/m2 (AC) every weeks for cycles for the adjuvant treatment of axillary lymph node positive breast cancer. The median number of cycles received was 4. Selected adverse reactions reported in this study are provided in Table 2. No treatment-related deaths were reported in patients on either arm of the study.Table 2. Selected Adverse Reactions in Patients with Early Breast Cancer Involving Axillary Lymph NodesAdverse ReactionsACIncludes pooled data from patients who received either AC for cycles or AC for cycles followed by CMF for cycles N=1492Conventional CMFN=739%%AC doxorubicin hydrochloride, cyclophosphamide; CMF cyclophosphamide, methotrexate, fluorouracilAlopecia9271Vomiting Vomiting <=12 hours3425 Vomiting >12 hours3712 Intractable52Leukopenia Grade (1,000-1,999 /mm3)3.49.4 Grade (<1000 /mm3)0.30.3Shock, sepsis21Systemic infection21Cardiac dysfunction Asymptomatic0.20.1 Transient0.10 Symptomatic0.10Thrombocytopenia Grade (25,000-49,999 /mm3)00.3 Grade (<25,000 /mm3)0.10. 6.2Postmarketing Experience. The following adverse reactions have been identified during postapproval use of Doxorubicin Hydrochloride Injection. Because these reactions are reported voluntarily from population of uncertain size, it is not always possible to reliably estimate their frequency or establish causal relationship to drug exposure.Cardiac Cardiogenic shockCutaneous Skin and nail hyperpigmentation, oncolysis, rash, itching, photosensitivity, urticaria, acral erythema, palmar plantar erythrodysesthesia Gastrointestinal Nausea, mucositis, stomatitis, necrotizing colitis, typhlitis, gastric erosions, gastrointestinal tract bleeding, hematochezia, esophagitis, anorexia, abdominal pain, dehydration, diarrhea, hyperpigmentation of the oral mucosaHypersensitivity Anaphylaxis Laboratory Abnormalities Increased ALT, increased ASTNeurological Peripheral sensory and motor neuropathy, seizures, coma Ocular Conjunctivitis, keratitis, lacrimation Vascular Phlebosclerosis, phlebitis/thrombophlebitis, hot flashes, thromboembolismOther Malaise/asthenia, fever, chills, weight gain.

BOXED WARNING SECTION.


WARNING: CARDIOMYOPATHY, SECONDARY MALIGNULLNCIES, EXTRAVASATION AND TISSUE NECROSIS, and SEVERE MYELOSUPPRESSION. Cardiomyopathy: Myocardial damage, including acute left ventricular failure, can occur with doxorubicin hydrochloride. The risk of cardiomyopathy is proportional to the cumulative exposure with incidence rates from 1% 20% for cumulative doses ranging from 300 mg/m2 to 500 mg/m2 when doxorubicin hydrochloride is administered every weeks. The risk of cardiomyopathy is further increased with concomitant cardiotoxic therapy. Assess left ventricular ejection fraction (LVEF) before and regularly during and after treatment with doxorubicin hydrochloride [see Warnings and Precautions (5.1)].Secondary Malignancies: Secondary acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS) occur at higher incidence in patients treated with anthracyclines, including doxorubicin hydrochloride [see Warnings and Precautions (5.2)].Extravasation and Tissue Necrosis: Extravasation of doxorubicin hydrochloride can result in severe local tissue injury and necrosis requiring wide excision of the affected area and skin grafting. Immediately terminate the drug and apply ice to the affected area [see Warnings and Precautions (5.3)].Severe myelosuppression resulting in serious infection, septic shock, requirement for transfusions, hospitalization, and death may occur [see Warnings and Precautions (5.4)].. Cardiomyopathy: Myocardial damage, including acute left ventricular failure, can occur with doxorubicin hydrochloride. The risk of cardiomyopathy is proportional to the cumulative exposure with incidence rates from 1% 20% for cumulative doses ranging from 300 mg/m2 to 500 mg/m2 when doxorubicin hydrochloride is administered every weeks. The risk of cardiomyopathy is further increased with concomitant cardiotoxic therapy. Assess left ventricular ejection fraction (LVEF) before and regularly during and after treatment with doxorubicin hydrochloride [see Warnings and Precautions (5.1)].. Secondary Malignancies: Secondary acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS) occur at higher incidence in patients treated with anthracyclines, including doxorubicin hydrochloride [see Warnings and Precautions (5.2)].. Extravasation and Tissue Necrosis: Extravasation of doxorubicin hydrochloride can result in severe local tissue injury and necrosis requiring wide excision of the affected area and skin grafting. Immediately terminate the drug and apply ice to the affected area [see Warnings and Precautions (5.3)].. Severe myelosuppression resulting in serious infection, septic shock, requirement for transfusions, hospitalization, and death may occur [see Warnings and Precautions (5.4)].. WARNING: CARDIOMYOPATHY, SECONDARY MALIGNULLNCIES, EXTRAVASATION AND TISSUE NECROSIS, and SEVERE MYELOSUPPRESSIONSee full prescribing information for complete boxed warning.Cardiomyopathy: Myocardial damage can occur with doxorubicin hydrochloride with incidences from 1% 20% for cumulative doses from 300 mg/m2 to 500 mg/m2 when doxorubicin hydrochloride is administered every weeks. The risk of cardiomyopathy is further increased with concomitant cardiotoxic therapy. Assess left ventricular ejection fraction (LVEF) before and regularly during and after treatment with doxorubicin hydrochloride. (5.1)Secondary Malignancies: Secondary acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS) occur at higher incidence in patients treated with anthracyclines, including doxorubicin hydrochloride. (5.2)Extravasation and Tissue Necrosis: Extravasation of doxorubicin hydrochloride can result in severe local tissue injury and necrosis requiring wide excision and skin grafting. Immediately terminate the drug, and apply ice to the affected area. (5.3)Severe myelosuppression resulting in serious infection, septic shock, requirement for transfusions, hospitalization, and death may occur. (5.4). Cardiomyopathy: Myocardial damage can occur with doxorubicin hydrochloride with incidences from 1% 20% for cumulative doses from 300 mg/m2 to 500 mg/m2 when doxorubicin hydrochloride is administered every weeks. The risk of cardiomyopathy is further increased with concomitant cardiotoxic therapy. Assess left ventricular ejection fraction (LVEF) before and regularly during and after treatment with doxorubicin hydrochloride. (5.1). Secondary Malignancies: Secondary acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS) occur at higher incidence in patients treated with anthracyclines, including doxorubicin hydrochloride. (5.2). Extravasation and Tissue Necrosis: Extravasation of doxorubicin hydrochloride can result in severe local tissue injury and necrosis requiring wide excision and skin grafting. Immediately terminate the drug, and apply ice to the affected area. (5.3). Severe myelosuppression resulting in serious infection, septic shock, requirement for transfusions, hospitalization, and death may occur. (5.4).

CARCINOGENESIS & MUTAGENESIS & IMPAIRMENT OF FERTILITY SECTION.


13.1Carcinogenesis, Mutagenesis, Impairment of Fertility. Doxorubicin hydrochloride treatment can increase the risk of secondary malignancies based on postmarketing reports [see Warnings and Precautions (5.2)]. Doxorubicin hydrochloride was mutagenic in the in vitro Ames assay, and clastogenic in multiple in vitro assays (CHO cell, V79 hamster cell, human lymphoblast, and SCE assays) and the in vivo mouse micronucleus assay.Doxorubicin hydrochloride decreased fertility in female rats at the doses of 0.05 and 0.2 mg/kg/day (approximately 0.005 and 0.02 times the recommended human dose, based on body surface area). single intravenous dose of 0.1 mg/kg doxorubicin hydrochloride (approximately 0.01 times the recommended human dose based on body surface area) was toxic to male reproductive organs in animal studies, producing testicular atrophy, diffuse degeneration of the seminiferous tubules, and oligospermia/hypospermia in rats. Doxorubicin hydrochloride induces DNULL damage in rabbit spermatozoa and dominant lethal mutations in mice.

CLINICAL PHARMACOLOGY SECTION.


12 CLINICAL PHARMACOLOGY. 12.1Mechanism of Action. The cytotoxic effect of doxorubicin hydrochloride on malignant cells and its toxic effects on various organs are thought to be related to nucleotide base intercalation and cell membrane lipid binding activities of doxorubicin. Intercalation inhibits nucleotide replication and action of DNULL and RNULL polymerases. The interaction of doxorubicin with topoisomerase II to form DNULL-cleavable complexes appears to be an important mechanism of doxorubicin hydrochloride cytocidal activity.. 12.3 Pharmacokinetics. Pharmacokinetic studies conducted in patients with various types of tumors have shown that doxorubicin follows multiphasic disposition after intravenous injection. In four patients, doxorubicin demonstrated dose-independent pharmacokinetics across dose range of 30 mg/m2 to 70 mg/m2.. DistributionThe distribution half-life is approximately minutes. Steady-state distribution volume ranges from 809 L/m2 to 1214 L/m2. Binding of doxorubicin and its major metabolite, doxorubicinol, to plasma proteins is 75% and is independent of plasma concentration of doxorubicin up to 1.1 ug/mL.Doxorubicin does not cross the blood brain barrier.. EliminationPlasma clearance is ranges from 324 mL/min/m2 to 809 mL/min/m2. The terminal half-life is 20 hours to 48 hours.. MetabolismDoxorubicin is substrate of CYP3A4, CYP2D6, and P-gp.Enzymatic reduction at the position and cleavage of the daunosamine sugar yields aglycones which are accompanied by free radical formation, the local production of which may contribute to the cardiotoxic activity of doxorubicin hydrochloride.Disposition of doxorubicinol in patients is formation rate limited, with the terminal half-life of doxorubicinol being similar to doxorubicin. The relative exposure of doxorubicinol, i.e., the ratio between the AUC of doxorubicinol and the AUC of doxorubicin is approximately 0.5.. ExcretionPlasma clearance is predominately by metabolism and biliary excretion. Approximately 40% of the dose appears in the bile in days, while only 5% to 12% of the drug and its metabolites appear in the urine during the same time period. In urine, <3% of the dose was recovered as doxorubicinol over days.. Specific Populations. WeightSystemic clearance of doxorubicin is significantly reduced in obese women with ideal body weight greater than 130%. There was significant reduction in clearance without any change in volume of distribution in obese patients when compared with normal patients with less than 115% ideal body weight.. Pediatric PatientsFollowing administration of doses ranging from 10 mg/m2 to 75 mg/m2 of doxorubicin hydrochloride to 60 patients ranging from months to 20 years, doxorubicin clearance averaged 1443 +- 114 mL/min/m2. Further analysis demonstrated that clearance in 52 patients ranging from to 20 years (1540 mL/min/m2) was increased compared with adults. However, clearance in infants younger than years of age (813 mL/min/m2) was decreased compared with older patients (ranging from to 20 years) and approached the range of clearance values determined in adults [see Use in Specific Populations (8.4)].. SexA published clinical study involving men and 21 women with no prior anthracycline therapy reported significantly higher median doxorubicin clearance in men compared to women (1088 mL/min/m2 versus 433 mL/min/m2). However, the terminal half-life of doxorubicin was longer in men compared to women (54 versus 35 hours).. Patients with Hepatic ImpairmentThe clearance of doxorubicin and doxorubicinol was reduced in patients with elevated serum total bilirubin concentrations [see Dosage and Administration (2.4), Warnings and Precautions (5.5)].

CLINICAL STUDIES SECTION.


14 CLINICAL STUDIES. 14.1Adjuvant Breast Cancer. The efficacy of doxorubicin hydrochloride-containing regimens for the post-operative, adjuvant treatment of surgically resected breast cancer was evaluated in meta-analysis conducted by the Early Breast Cancer Trialists Collaborative Group (EBCTCG). The EBCTCG meta-analyses compared cyclophosphamide, methotrexate, and fluorouracil (CMF) to no chemotherapy (19 trials including 7523 patients) and doxorubicin hydrochloride-containing regimens with CMF as an active control (6 trials including 3510 patients). Data from the meta-analysis of trials comparing CMF to no therapy were used to establish the historical treatment effect size for CMF regimens. The major efficacy outcome measures were disease-free survival (DFS) and overall survival (OS).Of the 3510 women (2157 received doxorubicin hydrochloride-containing regimens and 1353 received CMF treatment) with early breast cancer involving axillary lymph nodes included in the six trials from the meta-analyses, approximately 70% were premenopausal and 30% were postmenopausal.At the time of the meta-analysis, 1745 first recurrences and 1348 deaths had occurred. The analyses demonstrated that doxorubicin hydrochloride-containing regimens retained at least 75% of the historical CMF adjuvant effect on DFS with hazard ratio (HR) of 0.91 (95% CI: 0.82, 1.01) and on OS with HR of 0.91 (95% CI: 0.81, 1.03). Efficacy results are provided in Table and Figures and 2.Table 3. Summary of Randomized Trials Comparing Doxorubicin Hydrochloride-Containing Regimens Versus CMF in Meta-AnalysisStudy(starting year)RegimensNo. of CyclesNo. of PatientsDoxorubicin Hydrochloride-Containing Regimens vs. CMFHRHazard ratio of less than indicates that the treatment with doxorubicin hydrochloride-containing regimens is associated with lower risk of disease recurrences or death compared to the treatment with CMF. (95% CI)DFSOSAbbreviations: DFS disease free survival; OS overall survival; AC doxorubicin hydrochloride, cyclophosphamide; AVbCMF doxorubicin hydrochloride, vinblastine, cyclophosphamide, methotrexate, fluorouracil; CMF cyclophosphamide, methotrexate, fluorouracil; CMFVA cyclophosphamide, methotrexate, fluorouracil, vincristine, doxorubicin hydrochloride; FAC fluorouracil, doxorubicin hydrochloride, cyclophosphamide; FACV fluorouracil, doxorubicin hydrochloride, cyclophosphamide, vincristine; HR hazard ratio; CI confidence interval NSABP B-15(1984)AC41562Includes pooled data from patients who received either AC alone for cycles, or who were treated with AC for cycles followed by cycles of CMF. 0.93 (0.82, 1.06)0.97 (0.83, 1.12) CMF6776 SECSG 2(1976)FAC62600.86 (0.66, 1.13)0.93 (0.69, 1.26) CMF6268 ONCOFRANCE(1978)FACV121380.71 (0.49, 1.03)0.65 (0.44, 0.96) CMF12113 SE Sweden BCG A(1980)AC6210.59 (0.22, 1.61)0.53 (0.21, 1.37) CMF622 NSABC Israel Br0283(1983)AVbCMFPatients received alternating cycles of AVb and CMF. 46550.91 (0.53, 1.57)0.88 (0.47, 1.63) CMF650 Austrian BCSG 3(1984)CMFVA61211.07 (0.73, 1.55)0.93 (0.64, 1.35)CMF8124Combined StudiesDoxorubicin Hydrochloride-Containing Regimen21570.91 (0.82, 1.01)0.91 (0.81, 1.03)CMF1353Figure 1. Meta-analysis of Disease-Free SurvivalFigure 2. Meta-analysis of Overall Survival. Figure 1. Figure 2.

CLINICAL TRIALS EXPERIENCE SECTION.


6.1Clinical Trials Experience. Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.. Breast CancerThe safety data below were collected from 1492 women who received doxorubicin hydrochloride at dose of 60 mg/m2 and cyclophosphamide at dose of 600 mg/m2 (AC) every weeks for cycles for the adjuvant treatment of axillary lymph node positive breast cancer. The median number of cycles received was 4. Selected adverse reactions reported in this study are provided in Table 2. No treatment-related deaths were reported in patients on either arm of the study.Table 2. Selected Adverse Reactions in Patients with Early Breast Cancer Involving Axillary Lymph NodesAdverse ReactionsACIncludes pooled data from patients who received either AC for cycles or AC for cycles followed by CMF for cycles N=1492Conventional CMFN=739%%AC doxorubicin hydrochloride, cyclophosphamide; CMF cyclophosphamide, methotrexate, fluorouracilAlopecia9271Vomiting Vomiting <=12 hours3425 Vomiting >12 hours3712 Intractable52Leukopenia Grade (1,000-1,999 /mm3)3.49.4 Grade (<1000 /mm3)0.30.3Shock, sepsis21Systemic infection21Cardiac dysfunction Asymptomatic0.20.1 Transient0.10 Symptomatic0.10Thrombocytopenia Grade (25,000-49,999 /mm3)00.3 Grade (<25,000 /mm3)0.10.

DESCRIPTION SECTION.


11 DESCRIPTION. Doxorubicin hydrochloride is an anthracycline, topoisomerase inhibitor isolated from cultures of Streptomyces peucetius var. caesius. The chemical name of doxorubicin hydrochloride is 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy--L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxylacetyl)-1-methoxy-, hydrochloride (8S-cis)-. The chemical structure of doxorubicin hydrochloride is:Doxorubicin Hydrochloride Injection, for intravenous use is clear red, sterile, isotonic aqueous solution provided in vials containing 10 mg/5 mL doxorubicin hydrochloride (equivalent to 9.37 mg of doxorubicin free base), 20 mg/10 mL doxorubicin hydrochloride (equivalent to 18.74 mg of doxorubicin free base), 50 mg/25 mL doxorubicin hydrochloride (equivalent to 46.86 mg of doxorubicin free base), 150 mg/75 mL doxorubicin hydrochloride (140.58 mg of doxorubicin free base), or 200 mg/100 mL doxorubicin hydrochloride (equivalent to 187.4 mg of doxorubicin free base). The drug product has demonstrated inherent antimicrobial activity suitable for multiple dose presentation. Each milliliter of solution contains mg of doxorubicin hydrochloride and mg of sodium chloride. The pH of the solution is adjusted to 3.0 with hydrochloric acid, USP.. Chemical Structure.

DOSAGE & ADMINISTRATION SECTION.


2 DOSAGE AND ADMINISTRATION. Single agent: 60 to 75 mg/m2 given intravenously every 21 days (2.1).In combination: 40 to 75 mg/m2 given intravenously every 21 to 28 days (2.1).Discontinue Doxorubicin Hydrochloride Injection in patients who develop signs or symptoms of cardiomyopathy (2.2).Reduce dose in patients with hepatic impairment (2.3).. Single agent: 60 to 75 mg/m2 given intravenously every 21 days (2.1).. In combination: 40 to 75 mg/m2 given intravenously every 21 to 28 days (2.1).. Discontinue Doxorubicin Hydrochloride Injection in patients who develop signs or symptoms of cardiomyopathy (2.2).. Reduce dose in patients with hepatic impairment (2.3).. 2.1Recommended Dosage for Adjuvant Breast Cancer. The recommended dosage of Doxorubicin Hydrochloride Injection is 60 mg/m2 administered as an intravenous bolus on day of each 21-day treatment cycle, in combination with cyclophosphamide, for total of four cycles. 2.2Recommended Dosage for Other Cancers. The recommended dosage of Doxorubicin Hydrochloride Injection when used as single agent is 60 mg/m2 to 75 mg/m2 intravenously every 21 days.The recommended dosage of Doxorubicin Hydrochloride Injection, when administered in combination with other chemotherapy drugs, is 40 mg/m2 to 75 mg/m2 intravenously every 21 to 28 days.Consider use of the lower Doxorubicin Hydrochloride Injection dose in the recommended dosage range or longer intervals between cycles for heavily pretreated patients, elderly patients, or obese patients. Cumulative doses above 550 mg/m2 are associated with an increased risk of cardiomyopathy [see Warnings and Precautions (5.1)]. The recommended dosage of Doxorubicin Hydrochloride Injection when used as single agent is 60 mg/m2 to 75 mg/m2 intravenously every 21 days.. The recommended dosage of Doxorubicin Hydrochloride Injection, when administered in combination with other chemotherapy drugs, is 40 mg/m2 to 75 mg/m2 intravenously every 21 to 28 days.. Consider use of the lower Doxorubicin Hydrochloride Injection dose in the recommended dosage range or longer intervals between cycles for heavily pretreated patients, elderly patients, or obese patients. Cumulative doses above 550 mg/m2 are associated with an increased risk of cardiomyopathy [see Warnings and Precautions (5.1)]. 2.3Dosage Modifications for Adverse Reactions. CardiomyopathyDiscontinue Doxorubicin Hydrochloride Injection in patients who develop signs or symptoms of cardiomyopathy [see Warnings and Precautions (5.1)].. 2.4Dosage Modifications for Hepatic Impairment. Doxorubicin Hydrochloride Injection is contraindicated in patients with severe hepatic impairment (Child-Pugh Class or serum bilirubin greater than mg/dL) [see Contraindications (4)]. Dosage modifications for Doxorubicin Hydrochloride Injection in patients with elevated serum total bilirubin concentrations [see Warnings and Precautions (5.5), Use in Specific Populations (8.6)] are provided in Table 1.Table 1. Recommended Dosage Modification for Elevated Serum Total BilirubinSerum total bilirubin concentrationDosage Modification1.2 3 mg/dL50%3.1 5 mg/dL75%greater than mg/dLDo not initiate Doxorubicin Hydrochloride Injection;discontinue Doxorubicin Hydrochloride Injection. 2.5Preparation and Administration Doxorubicin Hydrochloride Injection is cytotoxic drug. Follow applicable special handling and disposal procedures.1 Preparation. Dilution of Doxorubicin Hydrochloride InjectionDilute Doxorubicin Hydrochloride Injection in 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP.Protect from light following preparation until completion of infusion.Use within hour. If not used within hour, discard the diluted product.. Dilute Doxorubicin Hydrochloride Injection in 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP.. Protect from light following preparation until completion of infusion.. Use within hour. If not used within hour, discard the diluted product.. AdministrationVisually inspect for particulate matter and discoloration prior to administration, whenever solution and container permit. Discard if the solution is discolored, cloudy, or contains particulate matter.. Visually inspect for particulate matter and discoloration prior to administration, whenever solution and container permit. Discard if the solution is discolored, cloudy, or contains particulate matter.. Administration by Intravenous InjectionAdminister diluted Doxorubicin Hydrochloride Injection as an intravenous injection through central intravenous line or secure and free-flowing peripheral venous line containing 0.9% Sodium Chloride Injection, USP, 0.45% Sodium Chloride Injection, USP, or 5% Dextrose Injection, USP.Administer intravenously over to 10 minutes. Decrease the rate of infusion if erythematous streaking along the vein proximal to the site of infusion or facial flushing occur.. Administer diluted Doxorubicin Hydrochloride Injection as an intravenous injection through central intravenous line or secure and free-flowing peripheral venous line containing 0.9% Sodium Chloride Injection, USP, 0.45% Sodium Chloride Injection, USP, or 5% Dextrose Injection, USP.. Administer intravenously over to 10 minutes. Decrease the rate of infusion if erythematous streaking along the vein proximal to the site of infusion or facial flushing occur.. Administration by Continuous Intravenous InfusionAdminister diluted Doxorubicin Hydrochloride Injection solution only through central intravenous line. Decrease the rate of infusion if erythematous streaking along the vein proximal to the site of infusion or facial flushing occur.Protect from light from preparation for infusion until completion of infusion.. Administer diluted Doxorubicin Hydrochloride Injection solution only through central intravenous line. Decrease the rate of infusion if erythematous streaking along the vein proximal to the site of infusion or facial flushing occur.. Protect from light from preparation for infusion until completion of infusion.. Management of Suspected ExtravasationImmediately discontinue Doxorubicin Hydrochloride Injection for burning or stinging sensation or other evidence indicating peri-venous infiltration or extravasation. Manage confirmed or suspected extravasation as follows:Do not remove the needle until attempts are made to aspirate extravasated fluid.Do not flush the line.Avoid applying pressure to the site.Apply ice to the site intermittently for 15 minutes, times day for days.If the extravasation is in an extremity, elevate the extremity.In adults, consider administration of dexrazoxane [see Warnings and Precautions (5.3)].. Do not remove the needle until attempts are made to aspirate extravasated fluid.. Do not flush the line.. Avoid applying pressure to the site.. Apply ice to the site intermittently for 15 minutes, times day for days.. If the extravasation is in an extremity, elevate the extremity.. In adults, consider administration of dexrazoxane [see Warnings and Precautions (5.3)].. Management of Contact with Skin or EyesTreat accidental contact with the skin or eyes immediately by copious lavage with water, or soap and water, or sodium bicarbonate solution. Do not abrade the skin by using scrub brush. Seek medical attention.. Incompatibility with Other DrugsDo not admix Doxorubicin Hydrochloride Injection with other drugs. If Doxorubicin Hydrochloride Injection is mixed with heparin or fluorouracil, precipitate may form. Avoid contact with alkaline solutions which can lead to hydrolysis of doxorubicin hydrochloride.

DOSAGE FORMS & STRENGTHS SECTION.


3 DOSAGE FORMS AND STRENGTHS. Doxorubicin Hydrochloride Injection:10 mg/5 mL, 20 mg/10 mL, and 50 mg/25 mL (2 mg/mL) clear red solution in single-dose vial.200 mg/100 mL (2 mg/mL) clear red solution in multiple-dose vial.. 10 mg/5 mL, 20 mg/10 mL, and 50 mg/25 mL (2 mg/mL) clear red solution in single-dose vial.. 200 mg/100 mL (2 mg/mL) clear red solution in multiple-dose vial.. Injection:10 mg/5 mL, 20 mg/10 mL, 50 mg/25 mL in single-dose vial (3).200 mg/100 mL in multiple-dose vial (3).. 10 mg/5 mL, 20 mg/10 mL, 50 mg/25 mL in single-dose vial (3).. 200 mg/100 mL in multiple-dose vial (3).

DRUG INTERACTIONS SECTION.


7 DRUG INTERACTIONS. Avoid concomitant use of doxorubicin hydrochloride with inhibitors and inducers of CYP3A4, CYP2D6, and/or P-gp (7.1).Do not administer doxorubicin hydrochloride in combination with trastuzumab due to increased risk of cardiac dysfunction (5.1, 7.2).. Avoid concomitant use of doxorubicin hydrochloride with inhibitors and inducers of CYP3A4, CYP2D6, and/or P-gp (7.1).. Do not administer doxorubicin hydrochloride in combination with trastuzumab due to increased risk of cardiac dysfunction (5.1, 7.2).. 7.1Effect of Other Drugs on Doxorubicin Hydrochloride Injection. Inhibitors of CYP3A4, CYP2D6, and P-gpConcomitant use of doxorubicin hydrochloride with inhibitors of CYP3A4, CYP2D6, or P-glycoprotein (P-gp), increased concentrations of doxorubicin, which may increase the incidence and severity of adverse reactions of doxorubicin hydrochloride. Avoid concomitant use of Doxorubicin Hydrochloride Injection with inhibitors of CYP3A4, CYP2D6, or P-gp.. Inducers of CYP3A4, CYP2D6, or P-gpConcomitant use of doxorubicin hydrochloride with inducers of CYP3A4, CYP2D6, or P-gp may decrease the concentration of doxorubicin. Avoid concomitant use of Doxorubicin Hydrochloride Injection with inducers of CYP3A4, CYP2D6, or P-gp.. PaclitaxelPaclitaxel, when given prior to doxorubicin hydrochloride, increases the plasma-concentrations of doxorubicin and its metabolites. Administer Doxorubicin Hydrochloride Injection prior to paclitaxel if used concomitantly. 7.2Concomitant Use of Trastuzumab. Concomitant use of trastuzumab and doxorubicin hydrochloride results in an increased risk of cardiac dysfunction. Avoid concomitant administration of Doxorubicin Hydrochloride Injection and trastuzumab [see Warnings and Precautions (5.1)]. Patients receiving doxorubicin after stopping treatment with trastuzumab may also be at an increased risk of developing cardiotoxicity. Trastuzumab may persist in the circulation for up to months. Therefore, avoid anthracycline-based therapy for up to months after stopping trastuzumab when possible. If anthracyclines are used before this time, carefully monitor cardiac function.. 7.3Concomitant Use of Dexrazoxane. Do not administer dexrazoxane as cardioprotectant at the initiation of doxorubicin hydrochloride-containing chemotherapy regimens. In randomized trial in women with metastatic breast cancer, initiation of dexrazoxane with doxorubicin hydrochloride-based chemotherapy resulted in significantly lower tumor response rate (48% vs. 63%; p=0.007) and shorter time to progression compared to doxorubicin hydrochloride-based chemotherapy alone.. 7.4Concomitant Use of 6-Mercaptopurine. Doxorubicin hydrochloride may potentiate 6-mercaptopurine-induced hepatotoxicity. In 11 patients with refractory leukemia treated with 6-mercaptopurine (500 mg/m2 intravenously daily for days per cycle every 2-3 weeks) and doxorubicin hydrochloride (50 mg/m2 intravenous once per cycle every 2-3 weeks) alone or with vincristine and prednisone, all developed hepatic dysfunction manifested by increased total serum bilirubin, alkaline phosphatase and aspartate aminotransferase.

FEMALES & MALES OF REPRODUCTIVE POTENTIAL SECTION.


8.3 Females and Males of Reproductive Potential. Pregnancy TestingVerify the pregnancy status of females of reproductive potential prior to initiating Doxorubicin Hydrochloride Injection.. Contraception. FemalesDoxorubicin Hydrochloride Injection can cause fetal harm when administered to pregnant women [see Use in Specific Populations (8.1)]. Advise female patients of reproductive potential to use highly effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment. [see Use in Specific Populations (8.1)].. MalesDoxorubicin hydrochloride may damage spermatozoa and testicular tissue, resulting in possible genetic fetal abnormalities. Due to the potential for genotoxicity, advise males with female partners of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment [see Nonclinical Toxicology (13.1)]. Males with pregnant partners should use condoms during treatment and for at least 10 days after the final dose [see Nonclinical Toxicology (13.1), Use in Specific Populations (8.1)].. Infertility. FemalesIn females of reproductive potential, Doxorubicin hydrochloride may cause infertility and result in amenorrhea. Premature menopause can occur. Recovery of menses and ovulation is related to age at treatment [see Nonclinical Toxicology (13.1)].. MalesDoxorubicin hydrochloride may result in oligospermia, azoospermia, and permanent loss of fertility. Sperm counts have been reported to return to normal levels in some men. This may occur several years after the end of therapy [see Nonclinical Toxicology (13.1)].

GERIATRIC USE SECTION.


8.5 Geriatric Use. Clinical experience in patients who were 65 years of age and older who received doxorubicin hydrochloride-based chemotherapy regimens for metastatic breast cancer showed no overall differences in safety and effectiveness compared with younger patients.

HEPATIC IMPAIRMENT SUBSECTION.


8.6 Hepatic Impairment. The clearance of doxorubicin was reduced in patients with elevated serum total bilirubin levels.Doxorubicin Hydrochloride Injection is contraindicated in patients with severe hepatic impairment (defined as Child Pugh Class or serum bilirubin levels greater than mg/dL) [see Contraindications (4)]. Reduce the dose of Doxorubicin Hydrochloride Injection in patients with serum total bilirubin levels greater than 1.2 mg/dL [See Dosage and Administration (2.4), Warnings and Precautions (5.5)].

HOW SUPPLIED SECTION.


16 HOW SUPPLIED/STORAGE AND HANDLING. Doxorubicin Hydrochloride InjectionDoxorubicin Hydrochloride Injection is sterile, isotonic solution, available in polypropylene (CYTOSAFE)(R) vials in single vial packs as:. Single-dose Vials: 10 mg/5 mL (2 mg/mL) NDC 0069-4004-0520 mg/10 mL (2 mg/mL) NDC 0069-4015-1050 mg/25 mL (2 mg/mL) NDC 0069-4026-25Retain in carton until time of use. Discard unused portion.. 10 mg/5 mL (2 mg/mL) NDC 0069-4004-0520 mg/10 mL (2 mg/mL) NDC 0069-4015-1050 mg/25 mL (2 mg/mL) NDC 0069-4026-25. Multiple-dose Vials: 200 mg/100 mL (2 mg/mL) NDC 0069-4037-01Retain in carton until contents are used.. 200 mg/100 mL (2 mg/mL) NDC 0069-4037-01. StorageStore all vials at to 8C (36 to 46F). Protect from light.Storage of Doxorubicin Hydrochloride Injection under refrigerated conditions can result in the formation of gelled product. Place gelled product at room temperature [15 to 30C (59 to 86F)] for to hours to return the product to slightly viscous, mobile solution.. Handling and DisposalDoxorubicin Hydrochloride Injection is cytotoxic drug. Follow applicable special handling and disposal procedures.1.

INFORMATION FOR PATIENTS SECTION.


17 PATIENT COUNSELING INFORMATION. Advise the patient to read the FDA-approved patient labeling (Patient Information).. CardiomyopathyAdvise patients that Doxorubicin Hydrochloride Injection can cause irreversible myocardial damage and to contact healthcare provider for symptoms of heart failure during or after treatment [see Warnings and Precautions (5.1)].. Secondary MalignancyAdvise patients of the increased risk of treatment-related leukemia [see Warnings and Precautions (5.2)].. MyelosuppressionAdvise patients that Doxorubicin Hydrochloride Injection can reduce the absolute neutrophil count resulting in an increased risk of infection and to contact healthcare provider for new onset fever or symptoms of infection [see Warnings and Precautions (5.4)].. Embryo-Fetal ToxicityAdvise pregnant women and females of reproductive potential of the potential risk to fetus, and to inform their healthcare provider of known or suspected pregnancy [see Warnings and Precautions (5.8), Use in Specific Populations (8.1)].Advise females of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment [see Warnings and Precautions (5.8), Use in Specific Populations (8.3)].Advise patients that Doxorubicin Hydrochloride Injection may induce chromosomal damage in sperm, which may lead to loss of fertility and offspring with birth defects. Advise males with female partners of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment [see Warnings and Precautions (5.8), Use in Specific Populations (8.3), Nonclinical Toxicology (13.1)].Advise males with pregnant partners to use condoms during treatment with Doxorubicin Hydrochloride Injection and for at least 10 days after the final dose [see Use in Specific Populations (8.3)].. LactationAdvise females not to breastfeed during treatment with Doxorubicin Hydrochloride Injection and for 10 days after the final dose [see Use in Specific Populations (8.2)].. InfertilityAdvise females and males of the potential loss of fertility from Doxorubicin Hydrochloride Injection [see Use in Specific Populations (8.3)].. Gastrointestinal and Dermatologic Adverse ReactionsAdvise patients that Doxorubicin Hydrochloride Injection can cause nausea, vomiting, diarrhea, mouth/oral pain and sores and to contact healthcare provider should they develop any severe symptoms that prevent them from eating and drinking [see Adverse Reactions (6)]. Advise patients that Doxorubicin Hydrochloride Injection can cause alopecia [see Adverse Reactions (6.1)].. AdministrationAdvise patients that Doxorubicin Hydrochloride Injection can cause their urine to appear red for to days after administration.This products label may have been updated. For current full prescribing information, please visit www.pfizer.com.

LACTATION SECTION.


8.2 Lactation. Risk SummaryDoxorubicin was measured in the milk of one lactating patient after therapy with 70 mg/m2 of doxorubicin hydrochloride given as 15-minute intravenous infusion. The peak milk concentration at 24 hours after treatment was 4.4-fold greater than the corresponding plasma concentration. Doxorubicin was detectable in the milk up to 72 hours. There are no data on the effects of doxorubicin hydrochloride on the breastfed child or the effects on milk production. Because of the potential for serious adverse reactions in the breastfed child, advise women not to breastfeed during treatment with Doxorubicin Hydrochloride Injection and for 10 days after the final dose.

MECHANISM OF ACTION SECTION.


12.1Mechanism of Action. The cytotoxic effect of doxorubicin hydrochloride on malignant cells and its toxic effects on various organs are thought to be related to nucleotide base intercalation and cell membrane lipid binding activities of doxorubicin. Intercalation inhibits nucleotide replication and action of DNULL and RNULL polymerases. The interaction of doxorubicin with topoisomerase II to form DNULL-cleavable complexes appears to be an important mechanism of doxorubicin hydrochloride cytocidal activity.

NONCLINICAL TOXICOLOGY SECTION.


13 NONCLINICAL TOXICOLOGY. 13.1Carcinogenesis, Mutagenesis, Impairment of Fertility. Doxorubicin hydrochloride treatment can increase the risk of secondary malignancies based on postmarketing reports [see Warnings and Precautions (5.2)]. Doxorubicin hydrochloride was mutagenic in the in vitro Ames assay, and clastogenic in multiple in vitro assays (CHO cell, V79 hamster cell, human lymphoblast, and SCE assays) and the in vivo mouse micronucleus assay.Doxorubicin hydrochloride decreased fertility in female rats at the doses of 0.05 and 0.2 mg/kg/day (approximately 0.005 and 0.02 times the recommended human dose, based on body surface area). single intravenous dose of 0.1 mg/kg doxorubicin hydrochloride (approximately 0.01 times the recommended human dose based on body surface area) was toxic to male reproductive organs in animal studies, producing testicular atrophy, diffuse degeneration of the seminiferous tubules, and oligospermia/hypospermia in rats. Doxorubicin hydrochloride induces DNULL damage in rabbit spermatozoa and dominant lethal mutations in mice.

OVERDOSAGE SECTION.


10 OVERDOSAGE. Few cases of overdose have been described. 58-year-old man with acute lymphoblastic leukemia received 10-fold overdose of doxorubicin hydrochloride (300 mg/m2) in one day. He was treated with charcoal filtration, hemopoietic growth factor (G-CSF), proton pump inhibitor and antimicrobial prophylaxis. The patient suffered sinus tachycardia, grade neutropenia and thrombocytopenia for 11 days, severe mucositis and sepsis. The patient recovered completely 26 days after the overdose.A 17-year-old girl with osteogenic sarcoma received 150 mg of doxorubicin hydrochloride daily for days (intended dose was 50 mg per day for days). The patient developed severe mucositis on days 4-7 after the overdose and chills and pyrexia on day 7. The patient was treated with antibiotics and platelets and recovered 18 days after overdose.

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL.


PRINCIPAL DISPLAY PANEL 10 mg/5 mL Vial Label. NDC 0069-4004-05Single-doseDiscard unused portionRx onlyDOXOrubicinHydrochloride Injection10 mg/5 mL(2 mg/mL)For Intravenous Use OnlyCaution: Cytotoxic Agent. PRINCIPAL DISPLAY PANEL 10 mg/5 mL Vial Label.

PEDIATRIC USE SECTION.


8.4 Pediatric Use. Based on postmarketing reports, pediatric patients treated with doxorubicin hydrochloride are at risk for developing late cardiovascular dysfunction. Risk factors include young age at treatment (especially <5 years), high cumulative doses and receipt of combined modality therapy. Long-term periodic cardiovascular monitoring is recommended for all pediatric patients who have received doxorubicin hydrochloride. Doxorubicin hydrochloride, as component of intensive chemotherapy regimens administered to pediatric patients, may contribute to prepubertal growth failure and may also contribute to gonadal impairment, which is usually temporary.There are no recommended dose adjustments based on age. Doxorubicin clearance was increased in patients aged years to 20 years as compared to adults, while doxorubicin clearance was similar in infants less than years as compared to adults [see Clinical Pharmacology (12.3)].

PHARMACOKINETICS SECTION.


12.3 Pharmacokinetics. Pharmacokinetic studies conducted in patients with various types of tumors have shown that doxorubicin follows multiphasic disposition after intravenous injection. In four patients, doxorubicin demonstrated dose-independent pharmacokinetics across dose range of 30 mg/m2 to 70 mg/m2.. DistributionThe distribution half-life is approximately minutes. Steady-state distribution volume ranges from 809 L/m2 to 1214 L/m2. Binding of doxorubicin and its major metabolite, doxorubicinol, to plasma proteins is 75% and is independent of plasma concentration of doxorubicin up to 1.1 ug/mL.Doxorubicin does not cross the blood brain barrier.. EliminationPlasma clearance is ranges from 324 mL/min/m2 to 809 mL/min/m2. The terminal half-life is 20 hours to 48 hours.. MetabolismDoxorubicin is substrate of CYP3A4, CYP2D6, and P-gp.Enzymatic reduction at the position and cleavage of the daunosamine sugar yields aglycones which are accompanied by free radical formation, the local production of which may contribute to the cardiotoxic activity of doxorubicin hydrochloride.Disposition of doxorubicinol in patients is formation rate limited, with the terminal half-life of doxorubicinol being similar to doxorubicin. The relative exposure of doxorubicinol, i.e., the ratio between the AUC of doxorubicinol and the AUC of doxorubicin is approximately 0.5.. ExcretionPlasma clearance is predominately by metabolism and biliary excretion. Approximately 40% of the dose appears in the bile in days, while only 5% to 12% of the drug and its metabolites appear in the urine during the same time period. In urine, <3% of the dose was recovered as doxorubicinol over days.. Specific Populations. WeightSystemic clearance of doxorubicin is significantly reduced in obese women with ideal body weight greater than 130%. There was significant reduction in clearance without any change in volume of distribution in obese patients when compared with normal patients with less than 115% ideal body weight.. Pediatric PatientsFollowing administration of doses ranging from 10 mg/m2 to 75 mg/m2 of doxorubicin hydrochloride to 60 patients ranging from months to 20 years, doxorubicin clearance averaged 1443 +- 114 mL/min/m2. Further analysis demonstrated that clearance in 52 patients ranging from to 20 years (1540 mL/min/m2) was increased compared with adults. However, clearance in infants younger than years of age (813 mL/min/m2) was decreased compared with older patients (ranging from to 20 years) and approached the range of clearance values determined in adults [see Use in Specific Populations (8.4)].. SexA published clinical study involving men and 21 women with no prior anthracycline therapy reported significantly higher median doxorubicin clearance in men compared to women (1088 mL/min/m2 versus 433 mL/min/m2). However, the terminal half-life of doxorubicin was longer in men compared to women (54 versus 35 hours).. Patients with Hepatic ImpairmentThe clearance of doxorubicin and doxorubicinol was reduced in patients with elevated serum total bilirubin concentrations [see Dosage and Administration (2.4), Warnings and Precautions (5.5)].

POSTMARKETING EXPERIENCE SECTION.


6.2Postmarketing Experience. The following adverse reactions have been identified during postapproval use of Doxorubicin Hydrochloride Injection. Because these reactions are reported voluntarily from population of uncertain size, it is not always possible to reliably estimate their frequency or establish causal relationship to drug exposure.Cardiac Cardiogenic shockCutaneous Skin and nail hyperpigmentation, oncolysis, rash, itching, photosensitivity, urticaria, acral erythema, palmar plantar erythrodysesthesia Gastrointestinal Nausea, mucositis, stomatitis, necrotizing colitis, typhlitis, gastric erosions, gastrointestinal tract bleeding, hematochezia, esophagitis, anorexia, abdominal pain, dehydration, diarrhea, hyperpigmentation of the oral mucosaHypersensitivity Anaphylaxis Laboratory Abnormalities Increased ALT, increased ASTNeurological Peripheral sensory and motor neuropathy, seizures, coma Ocular Conjunctivitis, keratitis, lacrimation Vascular Phlebosclerosis, phlebitis/thrombophlebitis, hot flashes, thromboembolismOther Malaise/asthenia, fever, chills, weight gain.

PREGNULLNCY SECTION.


8.1 Pregnancy. Risk SummaryBased on findings in animals and its mechanism of action, Doxorubicin Hydrochloride Injection can cause fetal harm when administered to pregnant woman; avoid the use of Doxorubicin Hydrochloride Injection during the 1st trimester. Available human data do not establish the presence or absence of major birth defects and miscarriage related to the use of doxorubicin hydrochloride during the 2nd and 3rd trimesters. Doxorubicin hydrochloride was teratogenic and embryotoxic in rats and embryotoxic in rabbits when administered during organogenesis at doses approximately 0.07 times (based on body surface area) the recommended human dose of 60 mg/m2 (see Data). Advise pregnant women of the potential risk to fetus.In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is to 4% and 15 to 20%, respectively.. Data. Animal DataDoxorubicin hydrochloride was teratogenic and embryotoxic at doses of 0.8 mg/kg/day (about 0.07 times the recommended human dose based on body surface area) when administered during the period of organogenesis in rats. Teratogenicity and embryotoxicity were also seen using discrete periods of treatment. The most susceptible was the 6- to 9-day gestation period at doses of 1.25 mg/kg/day and greater. Characteristic malformations included esophageal and intestinal atresia, tracheo-esophageal fistula, hypoplasia of the urinary bladder, and cardiovascular anomalies. Doxorubicin hydrochloride was embryotoxic (increase in embryo-fetal deaths) and abortifacient at 0.4 mg/kg/day (about 0.07 times the recommended human dose based on body surface area) in rabbits when administered during the period of organogenesis.

RECENT MAJOR CHANGES SECTION.


Warnings and Precautions, Embryo-Fetal Toxicity (5.8)12/2019.

REFERENCES SECTION.


15 REFERENCES. Hazardous Drugs. OSHA. http://www.osha.gov/SLTC/hazardousdrugs/index.html. Hazardous Drugs. OSHA. http://www.osha.gov/SLTC/hazardousdrugs/index.html.

SPL PATIENT PACKAGE INSERT SECTION.


This Patient Information has been approved by the U.S. Food and Drug Administration.Revised: 2/2020Patient InformationDOXORUBICIN (dok-suh-roo-buh-sin) HYDROCHLORIDEinjection, for intravenous use What is the most important information should know about DoxorubicinDoxorubicin may cause serious side effects including:Heart muscle problems. Doxorubicin can cause heart muscle damage that may lead to heart failure. Heart failure means your heart does not pump blood well. Heart failure is irreversible in some cases and can lead to death. Heart failure can happen during your treatment with Doxorubicin or months to years after stopping treatment. Your risk of heart muscle damage increases with higher total amounts of Doxorubicin that you receive in your lifetime. Your risk of heart failure is higher if you:have other heart problemshave had or are currently receiving radiation therapy to your chesthave had treatment with certain other anti-cancer medicinestake other medicines that can have severe side effects on your heart Tell your healthcare provider if you get any of these symptoms of heart failure during or after treatment with Doxorubicin: extreme tiredness or weaknessshortness of breathfast heartbeatswelling of your feet and anklesYour healthcare provider will do tests to check the strength of your heart muscle before, during, and after your treatment with Doxorubicin.Heart rhythm problems. Doxorubicin can cause serious heart rhythm problems that may lead to death. This can happen during your infusion, within few hours after your infusion or anytime during treatment with Doxorubicin. Tell your healthcare provider if you get any symptoms of heart rhythm problems, such as feeling as if your heart is beating fast, irregular or slow, or you feel lightheaded, dizzy, short of breath, chest discomfort or you faint.Risk of new cancers. You may have an increased risk of developing certain blood cancers called acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS) after treatment with Doxorubicin. Talk with your healthcare provider about your risk of developing new cancers if you receive Doxorubicin.Skin damage at or near the vein where Doxorubicin is given. Doxorubicin can damage the skin if it leaks out of the vein and might cause blisters, skin sores or severe tissue damage, which may require skin grafts. Tell your healthcare provider if you get burning or stinging during your infusion. Decreased blood cell counts. Doxorubicin can cause decrease in neutrophils (a type of white blood cell important in fighting bacterial infections) and platelets (important for clotting and to control bleeding). This may lead to serious infection, the need for blood transfusions, treatment in hospital or death. Your healthcare provider will check your blood cell counts before each infusion and during treatment with Doxorubicin. Call your healthcare provider right away if you get fever (temperature of 100.4F or higher) or chills with shivering.What is DoxorubicinDoxorubicin is prescription medicine used to treat certain types of cancers. Doxorubicin may be used alone or along with other anti-cancer medicines.Do not receive Doxorubicin if:you have had recent heart attack (within the past to weeks) or have severe heart problems.your blood cell counts (platelets, red blood cells, and white blood cells) are very low because of prior chemotherapy.you have severe liver problems.you have had severe allergic reaction to Doxorubicin.Before you receive Doxorubicin, tell your healthcare provider about all of your medical conditions, including if you:have heart problems including heart failure.are currently receiving radiation therapy or plan to receive radiation to the chest.have liver problems.have had an allergic reaction to doxorubicin.are pregnant or plan to become pregnant. Doxorubicin can harm your unborn baby. You should not become pregnant during treatment with Doxorubicin. Tell your healthcare provider right away if you become pregnant or think you may be pregnant.Females who are able to become pregnant: Your healthcare provider will check to see if you are pregnant before you start treatment with DoxorubicinYou should use effective birth control (contraception) during treatment with Doxorubicin and for months after treatment Males: Doxorubicin can affect your sperm and could cause birth defects. If you have female partner who can become pregnant, you should use effective birth control during treatment with Doxorubicin and for months after treatmentIf you have pregnant partner, you should use condoms during treatment with Doxorubicin and for at least 10 days after the final doseTalk to your healthcare provider about birth control methods that may be right for you are breastfeeding or plan to breastfeed. Doxorubicin can pass into your breast milk. Do not breastfeed during treatment with Doxorubicin and for 10 days after the final dose. Talk to your healthcare provider about the best way to feed your baby during this time.Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.How will receive DoxorubicinDoxorubicin will be given to you into your vein through an intravenous (IV) line.Your healthcare provider will do blood tests to check for side effects during treatment with Doxorubicin.Your healthcare provider may stop your treatment, change the timing of your treatment, or change the dose of your treatment if you have certain side effects while receiving Doxorubicin.What are the possible side effects of DoxorubicinDoxorubicin may cause serious side effects, including:See What is the most important information should know about Doxorubicin The most common side effects of Doxorubicin include:total hair loss (alopecia). Your hair may re-grow after your treatment.nauseavomitingOther side effects:Red colored urine. You may have red colored urine for to days after your infusion of Doxorubicin. This is normal. Tell your healthcare provider if it does not stop in few days, or if you see what looks like blood or blood clots in your urine.Call your healthcare provider if you have severe symptoms that prevent you from eating or drinking, such as:nauseavomitingdiarrheamouth pain or sores Doxorubicin may cause fertility problems in males. This could affect your ability to father child. Talk to your healthcare provider if this is concern for you.Doxorubicin may cause fertility problems in females. Your periods (menstrual cycle) may completely stop when you receive Doxorubicin. Your periods may or may not return following treatment. Early menopause has also happened. Talk to your healthcare provider if this is concern for you.These are not all of the possible side effects of Doxorubicin.Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.General information about the safe and effective use of Doxorubicin.Medicines are sometimes prescribed for purposes other than those listed in Patient Information leaflet. You can ask your pharmacist or healthcare provider for information about Doxorubicin that is written for health professionals.What are the ingredients in DoxorubicinActive ingredient: doxorubicin hydrochloride Inactive ingredients for Doxorubicin Hydrochloride Injection: sodium chloride, and hydrochloric acid, USP.Distributed byPfizer LabsDivision of Pfizer, Inc.New York, NY 10017 PREMIERProRx(R) is registered trademark of Premier Healthcare Alliance, L.P., used under license.LAB-0703-3.0For more information, call 1-800-438-1985 or visit www.pfizer.com. Heart muscle problems. Doxorubicin can cause heart muscle damage that may lead to heart failure. Heart failure means your heart does not pump blood well. Heart failure is irreversible in some cases and can lead to death. Heart failure can happen during your treatment with Doxorubicin or months to years after stopping treatment. Your risk of heart muscle damage increases with higher total amounts of Doxorubicin that you receive in your lifetime. Your risk of heart failure is higher if you:have other heart problemshave had or are currently receiving radiation therapy to your chesthave had treatment with certain other anti-cancer medicinestake other medicines that can have severe side effects on your heart Tell your healthcare provider if you get any of these symptoms of heart failure during or after treatment with Doxorubicin: have other heart problems. have had or are currently receiving radiation therapy to your chest. have had treatment with certain other anti-cancer medicines. take other medicines that can have severe side effects on your heart. extreme tiredness or weakness. shortness of breath. fast heartbeat. swelling of your feet and ankles. Heart rhythm problems. Doxorubicin can cause serious heart rhythm problems that may lead to death. This can happen during your infusion, within few hours after your infusion or anytime during treatment with Doxorubicin. Tell your healthcare provider if you get any symptoms of heart rhythm problems, such as feeling as if your heart is beating fast, irregular or slow, or you feel lightheaded, dizzy, short of breath, chest discomfort or you faint.. Risk of new cancers. You may have an increased risk of developing certain blood cancers called acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS) after treatment with Doxorubicin. Talk with your healthcare provider about your risk of developing new cancers if you receive Doxorubicin.. Skin damage at or near the vein where Doxorubicin is given. Doxorubicin can damage the skin if it leaks out of the vein and might cause blisters, skin sores or severe tissue damage, which may require skin grafts. Tell your healthcare provider if you get burning or stinging during your infusion. Decreased blood cell counts. Doxorubicin can cause decrease in neutrophils (a type of white blood cell important in fighting bacterial infections) and platelets (important for clotting and to control bleeding). This may lead to serious infection, the need for blood transfusions, treatment in hospital or death. Your healthcare provider will check your blood cell counts before each infusion and during treatment with Doxorubicin. Call your healthcare provider right away if you get fever (temperature of 100.4F or higher) or chills with shivering.. you have had recent heart attack (within the past to weeks) or have severe heart problems.. your blood cell counts (platelets, red blood cells, and white blood cells) are very low because of prior chemotherapy.. you have severe liver problems.. you have had severe allergic reaction to Doxorubicin.. have heart problems including heart failure.. are currently receiving radiation therapy or plan to receive radiation to the chest.. have liver problems.. have had an allergic reaction to doxorubicin.. are pregnant or plan to become pregnant. Doxorubicin can harm your unborn baby. You should not become pregnant during treatment with Doxorubicin. Tell your healthcare provider right away if you become pregnant or think you may be pregnant.Females who are able to become pregnant: Your healthcare provider will check to see if you are pregnant before you start treatment with DoxorubicinYou should use effective birth control (contraception) during treatment with Doxorubicin and for months after treatment Males: Doxorubicin can affect your sperm and could cause birth defects. If you have female partner who can become pregnant, you should use effective birth control during treatment with Doxorubicin and for months after treatmentIf you have pregnant partner, you should use condoms during treatment with Doxorubicin and for at least 10 days after the final doseTalk to your healthcare provider about birth control methods that may be right for you Your healthcare provider will check to see if you are pregnant before you start treatment with Doxorubicin. You should use effective birth control (contraception) during treatment with Doxorubicin and for months after treatment. Doxorubicin can affect your sperm and could cause birth defects. If you have female partner who can become pregnant, you should use effective birth control during treatment with Doxorubicin and for months after treatment. If you have pregnant partner, you should use condoms during treatment with Doxorubicin and for at least 10 days after the final dose. Talk to your healthcare provider about birth control methods that may be right for you. are breastfeeding or plan to breastfeed. Doxorubicin can pass into your breast milk. Do not breastfeed during treatment with Doxorubicin and for 10 days after the final dose. Talk to your healthcare provider about the best way to feed your baby during this time.. Doxorubicin will be given to you into your vein through an intravenous (IV) line.. Your healthcare provider will do blood tests to check for side effects during treatment with Doxorubicin.. Your healthcare provider may stop your treatment, change the timing of your treatment, or change the dose of your treatment if you have certain side effects while receiving Doxorubicin.. See What is the most important information should know about Doxorubicin total hair loss (alopecia). Your hair may re-grow after your treatment.. nausea. vomiting. Red colored urine. You may have red colored urine for to days after your infusion of Doxorubicin. This is normal. Tell your healthcare provider if it does not stop in few days, or if you see what looks like blood or blood clots in your urine.. Call your healthcare provider if you have severe symptoms that prevent you from eating or drinking, such as:nauseavomitingdiarrheamouth pain or sores nausea. vomiting. diarrhea. mouth pain or sores. Logo.

SPL UNCLASSIFIED SECTION.


1.1 Adjuvant Breast Cancer. Doxorubicin Hydrochloride Injection is indicated as component of multi-agent adjuvant chemotherapy for treatment of women with axillary lymph node involvement following resection of primary breast cancer.

STORAGE AND HANDLING SECTION.


StorageStore all vials at to 8C (36 to 46F). Protect from light.Storage of Doxorubicin Hydrochloride Injection under refrigerated conditions can result in the formation of gelled product. Place gelled product at room temperature [15 to 30C (59 to 86F)] for to hours to return the product to slightly viscous, mobile solution.

USE IN SPECIFIC POPULATIONS SECTION.


8 USE IN SPECIFIC POPULATIONS. Lactation: Advise not to breastfeed (8.2).Females and Males of Reproductive Potential: May impair fertility (8.3).. Lactation: Advise not to breastfeed (8.2).. Females and Males of Reproductive Potential: May impair fertility (8.3).. 8.1 Pregnancy. Risk SummaryBased on findings in animals and its mechanism of action, Doxorubicin Hydrochloride Injection can cause fetal harm when administered to pregnant woman; avoid the use of Doxorubicin Hydrochloride Injection during the 1st trimester. Available human data do not establish the presence or absence of major birth defects and miscarriage related to the use of doxorubicin hydrochloride during the 2nd and 3rd trimesters. Doxorubicin hydrochloride was teratogenic and embryotoxic in rats and embryotoxic in rabbits when administered during organogenesis at doses approximately 0.07 times (based on body surface area) the recommended human dose of 60 mg/m2 (see Data). Advise pregnant women of the potential risk to fetus.In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is to 4% and 15 to 20%, respectively.. Data. Animal DataDoxorubicin hydrochloride was teratogenic and embryotoxic at doses of 0.8 mg/kg/day (about 0.07 times the recommended human dose based on body surface area) when administered during the period of organogenesis in rats. Teratogenicity and embryotoxicity were also seen using discrete periods of treatment. The most susceptible was the 6- to 9-day gestation period at doses of 1.25 mg/kg/day and greater. Characteristic malformations included esophageal and intestinal atresia, tracheo-esophageal fistula, hypoplasia of the urinary bladder, and cardiovascular anomalies. Doxorubicin hydrochloride was embryotoxic (increase in embryo-fetal deaths) and abortifacient at 0.4 mg/kg/day (about 0.07 times the recommended human dose based on body surface area) in rabbits when administered during the period of organogenesis.. 8.2 Lactation. Risk SummaryDoxorubicin was measured in the milk of one lactating patient after therapy with 70 mg/m2 of doxorubicin hydrochloride given as 15-minute intravenous infusion. The peak milk concentration at 24 hours after treatment was 4.4-fold greater than the corresponding plasma concentration. Doxorubicin was detectable in the milk up to 72 hours. There are no data on the effects of doxorubicin hydrochloride on the breastfed child or the effects on milk production. Because of the potential for serious adverse reactions in the breastfed child, advise women not to breastfeed during treatment with Doxorubicin Hydrochloride Injection and for 10 days after the final dose.. 8.3 Females and Males of Reproductive Potential. Pregnancy TestingVerify the pregnancy status of females of reproductive potential prior to initiating Doxorubicin Hydrochloride Injection.. Contraception. FemalesDoxorubicin Hydrochloride Injection can cause fetal harm when administered to pregnant women [see Use in Specific Populations (8.1)]. Advise female patients of reproductive potential to use highly effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment. [see Use in Specific Populations (8.1)].. MalesDoxorubicin hydrochloride may damage spermatozoa and testicular tissue, resulting in possible genetic fetal abnormalities. Due to the potential for genotoxicity, advise males with female partners of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment [see Nonclinical Toxicology (13.1)]. Males with pregnant partners should use condoms during treatment and for at least 10 days after the final dose [see Nonclinical Toxicology (13.1), Use in Specific Populations (8.1)].. Infertility. FemalesIn females of reproductive potential, Doxorubicin hydrochloride may cause infertility and result in amenorrhea. Premature menopause can occur. Recovery of menses and ovulation is related to age at treatment [see Nonclinical Toxicology (13.1)].. MalesDoxorubicin hydrochloride may result in oligospermia, azoospermia, and permanent loss of fertility. Sperm counts have been reported to return to normal levels in some men. This may occur several years after the end of therapy [see Nonclinical Toxicology (13.1)].. 8.4 Pediatric Use. Based on postmarketing reports, pediatric patients treated with doxorubicin hydrochloride are at risk for developing late cardiovascular dysfunction. Risk factors include young age at treatment (especially <5 years), high cumulative doses and receipt of combined modality therapy. Long-term periodic cardiovascular monitoring is recommended for all pediatric patients who have received doxorubicin hydrochloride. Doxorubicin hydrochloride, as component of intensive chemotherapy regimens administered to pediatric patients, may contribute to prepubertal growth failure and may also contribute to gonadal impairment, which is usually temporary.There are no recommended dose adjustments based on age. Doxorubicin clearance was increased in patients aged years to 20 years as compared to adults, while doxorubicin clearance was similar in infants less than years as compared to adults [see Clinical Pharmacology (12.3)].. 8.5 Geriatric Use. Clinical experience in patients who were 65 years of age and older who received doxorubicin hydrochloride-based chemotherapy regimens for metastatic breast cancer showed no overall differences in safety and effectiveness compared with younger patients.. 8.6 Hepatic Impairment. The clearance of doxorubicin was reduced in patients with elevated serum total bilirubin levels.Doxorubicin Hydrochloride Injection is contraindicated in patients with severe hepatic impairment (defined as Child Pugh Class or serum bilirubin levels greater than mg/dL) [see Contraindications (4)]. Reduce the dose of Doxorubicin Hydrochloride Injection in patients with serum total bilirubin levels greater than 1.2 mg/dL [See Dosage and Administration (2.4), Warnings and Precautions (5.5)].

WARNINGS AND PRECAUTIONS SECTION.


5 WARNINGS AND PRECAUTIONS. Radiation-Induced Toxicity: Can be increased by the administration of Doxorubicin Hydrochloride Injection. Radiation recall can occur in patients who receive Doxorubicin Hydrochloride Injection after prior radiation therapy (5.7).Embryo-Fetal Toxicity: Can cause fetal harm. Advise females of reproductive potential of the potential risk to fetus and on the use of effective contraception. Advise males with female partners of reproductive potential to use effective contraception. Advise males with pregnant partners to use condoms (5.8, 8.1, 8.3).. Radiation-Induced Toxicity: Can be increased by the administration of Doxorubicin Hydrochloride Injection. Radiation recall can occur in patients who receive Doxorubicin Hydrochloride Injection after prior radiation therapy (5.7).. Embryo-Fetal Toxicity: Can cause fetal harm. Advise females of reproductive potential of the potential risk to fetus and on the use of effective contraception. Advise males with female partners of reproductive potential to use effective contraception. Advise males with pregnant partners to use condoms (5.8, 8.1, 8.3).. 5.1Cardiomyopathy and Arrhythmias. CardiomyopathyDoxorubicin hydrochloride can result in myocardial damage, including acute left ventricular failure. The risk of cardiomyopathy is generally proportional to the cumulative exposure. Include prior doses of other anthracyclines or anthracenediones in calculations of total cumulative dosage for doxorubicin hydrochloride. Cardiomyopathy may develop during treatment or up to several years after completion of treatment and can include decrease in LVEF and signs and symptoms of congestive heart failure (CHF). The probability of developing cardiomyopathy is estimated to be to 2% at total cumulative dose of 300 mg/m2 of doxorubicin hydrochloride, to 5% at dose of 400 mg/m2, to 8% at dose of 450 mg/m2, and to 20% at dose of 500 mg/m2, when doxorubicin hydrochloride is administered every weeks. There is an additive or potentially synergistic increase in the risk of cardiomyopathy in patients who have received radiotherapy to the mediastinum or concomitant therapy with other known cardiotoxic agents such as cyclophosphamide and trastuzumab.Pericarditis and myocarditis have also been reported during or following doxorubicin hydrochloride treatment.Assess left ventricular cardiac function (e.g., MUGA or echocardiogram) prior to initiation of Doxorubicin Hydrochloride Injection, during treatment to detect acute changes, and after treatment to detect delayed cardiotoxicity. Increase the frequency of assessments as the cumulative dose exceeds 300 mg/m2. Use the same method of assessment of LVEF at all time points [see Use in Specific Populations (8.4)]. Discontinue Doxorubicin Hydrochloride Injection in patients who develop signs or symptoms of cardiomyopathy [see Dosage and Administration (2.3)].Consider the use of dexrazoxane to reduce the incidence and severity of cardiomyopathy due to doxorubicin hydrochloride administration in patients who have received cumulative doxorubicin hydrochloride dose of 300 mg/m2 and who will continue to receive doxorubicin hydrochloride.. ArrhythmiasDoxorubicin hydrochloride can result in arrhythmias, including life-threatening arrhythmias, during or within few hours after doxorubicin hydrochloride administration and at any time point during treatment. Tachyarrhythmias, including sinus tachycardia, premature ventricular contractions, and ventricular tachycardia, as well as bradycardia, can occur. Electrocardiographic changes including non-specific ST-T wave changes, atrioventricular and bundle-branch block can also occur. These electrocardiographic changes may be transient and self-limited and may not require dosage modification of doxorubicin hydrochloride.. 5.2Secondary Malignancies. The risk of developing secondary acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS) is increased following treatment with doxorubicin hydrochloride. Cumulative incidences ranged from 0.2% at five years to 1.5% at 10 years in two separate trials involving the adjuvant treatment of women with breast cancer. These leukemias generally occur within to years of treatment.. 5.3Extravasation and Tissue Necrosis. Extravasation of doxorubicin hydrochloride can cause severe local tissue injury manifesting as blistering, ulceration, and necrosis requiring wide excision of the affected area and skin grafting. Extravasation should be considered if patient experiences burning or stinging sensation or shows other evidence indicating peri-venous infiltration or extravasation; however, extravasation may be present in patients who do not experience stinging or burning sensation or when blood return is present on aspiration of the infusion needle.When given via peripheral venous line, infuse Doxorubicin Hydrochloride Injection over 10 minutes or less to minimize the risk of thrombosis or perivenous extravasation.If extravasation is suspected, immediately discontinue the intravenous injection or continuous intravenous infusion [see Dosage and Administration (2.5)]. Apply ice to the site intermittently for 15 minutes, times day for days. In adults, if appropriate, administer dexrazoxane at the site of extravasation as soon as possible and within the first hours after extravasation.. 5.4Severe Myelosuppression. Doxorubicin hydrochloride can cause myelosuppression. In Study 1, the incidence of severe myelosuppression was: grade leukopenia (0.3%), grade leukopenia (3%), and grade thrombocytopenia (0.1%). dose-dependent, reversible neutropenia is the predominant manifestation of myelosuppression from doxorubicin hydrochloride. When doxorubicin hydrochloride is administered every 21 days, the neutrophil count reaches its nadir 10 to 14 days after administration with recovery usually occurring by day 21.Obtain complete blood counts prior to each treatment and carefully monitor patients during treatment for possible clinical complications due to myelosuppression. Delay next dose of Doxorubicin Hydrochloride Injection if severe myelosuppression has not improved. Consider dose reduction for patients with prolonged myelosuppression based on severity of reaction.. 5.5Use in Patients with Hepatic Impairment. The clearance of doxorubicin is decreased in patients with elevated serum bilirubin with an increased risk of toxicity [see Use in Specific Populations (8.6), Clinical Pharmacology (12.3)]. Doxorubicin Hydrochloride Injection is contraindicated in patients with severe hepatic impairment (defined as Child Pugh Class or serum bilirubin level greater than mg/dL) [see Contraindications (4)]. Reduce the dose of Doxorubicin Hydrochloride Injection in patients with serum bilirubin levels of 1.2 to mg/dL [see Dosage and Administration (2.4)]. Obtain liver tests including ALT, AST, alkaline phosphatase, and bilirubin prior to and during therapy.. 5.6Tumor Lysis Syndrome. Doxorubicin hydrochloride can induce tumor lysis syndrome in patients with rapidly growing tumors. Evaluate blood uric acid levels, potassium, calcium, phosphate, and creatinine after initial treatment. Hydration, urine alkalinization, and prophylaxis with allopurinol to prevent hyperuricemia may minimize potential complications of tumor lysis syndrome.. 5.7Potentiation of Radiation Toxicity and Radiation Recall. Doxorubicin hydrochloride can increase radiation-induced toxicity to the myocardium, mucosa, skin, and liver. Radiation recall, including but not limited to cutaneous and pulmonary toxicity, can occur in patients who receive doxorubicin hydrochloride after prior radiation therapy.. 5.8Embryo-Fetal Toxicity. Based on findings in animals and its mechanism of action, Doxorubicin Hydrochloride Injection can cause fetal harm when administered to pregnant woman; avoid the use of Doxorubicin Hydrochloride Injection during the 1st trimester. Available human data do not establish the presence or absence of major birth defects and miscarriage related to the use of doxorubicin hydrochloride during the 2nd and 3rd trimesters. Doxorubicin hydrochloride was teratogenic and embryotoxic in rats and rabbits at doses lower than the recommended human dose. Advise pregnant women of the potential risk to fetus. Advise females of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment. Advise males with female partners of reproductive potential to use effective contraception during treatment with Doxorubicin Hydrochloride Injection and for months after treatment. Advise males with pregnant partners to use condoms during treatment with Doxorubicin Hydrochloride Injection and for at least 10 days after the final dose [see Use in Specific Populations (8.1, 8.3), Nonclinical Toxicology (13.1)].