nefopam ๐Ÿถ Veterinary Use | Indications/Contra | FAERs-F | FAERs-M | Orange Bk | PK/Tox | Related Drugs | BioActivity |

Stem definitionDrug idCAS RN
1891 13669-70-0

Description:

MoleculeDescription

Molfile Inchi Smiles

Synonyms:

  • nefopam
  • fenazoxine
  • (+/-)-Nefopam
  • nefopam hydrochloride
  • nefopam HCl
Non-narcotic analgesic chemically similar to ORPHENADRINE. Its mechanism of action is unclear. It is used for the relief of acute and chronic pain. (From Martindale, The Extra Pharmacopoeia, 30th ed, p26)
  • Molecular weight: 253.35
  • Formula: C17H19NO
  • CLOGP: 2.91
  • LIPINSKI: 0
  • HAC: 2
  • HDO: 0
  • TPSA: 12.47
  • ALOGS: -3.50
  • ROTB: 1

Drug dosage:

None

ADMET properties:

PropertyValueReference
BDDCS (Biopharmaceutical Drug Disposition Classification System) 1 Benet LZ, Broccatelli F, Oprea TI
S (Water solubility) 34 mg/mL Benet LZ, Broccatelli F, Oprea TI
EoM (Fraction excreted unchanged in urine) 3 % Benet LZ, Broccatelli F, Oprea TI
MRTD (Maximum Recommended Therapeutic Daily Dose) 1.04 ยตM/kg/day Contrera JF, Matthews EJ, Kruhlak NL, Benz RD
BA (Bioavailability) 36 % Kim MT, Sedykh A, Chakravarti SK, Saiakhov RD, Zhu H
Vd (Volume of distribution) 5.60 L/kg Lombardo F, Berellini G, Obach RS
CL (Clearance) 12 mL/min/kg Lombardo F, Berellini G, Obach RS
t_half (Half-life) 5 hours Lombardo F, Berellini G, Obach RS

Predicted pharmacokinetic/toxicological properties (PK-AZ):

PropertyDescriptionValueUnitConfidenceSimilarity
azlogd74 LogD at pH 7.4 2.093 High 1
caco2-efflux Caco-2 efflux ratio (BA/AB) 0.665 High 1
caco2-intrinsic-papp Caco-2 intrinsic apparent permeability 29.854 10^-6 cm/s High 1
dh-clint Dog hepatocyte intrinsic clearance 46.452 uL/min/10^6 cells High 1
dppb Dog plasma protein binding (% unbound) 46.210 % High 1
fcs-ppb Fetal calf serum protein binding (% unbound) 55.620 % High 1
herg hERG pIC50 4.799 pIC50 High 1
hh-clint Human hepatocyte intrinsic clearance 4.266 uL/min/10^6 cells High 1
hlm-clint Human liver microsomal intrinsic clearance 18.365 uL/min/mg protein High 1
hppb Human plasma protein binding (% unbound) 46.440 % High 1
kinase-safety-class ACVR2B,AXL,BRAF,BTK,CAMK2D,CDK5,CDK9,EIF2AK3,EPHB4,ERBB2,GRK2,ITK,MAPK7,MAPKAPK2,NTRK2,PDK4,PRKDC 17
kinase-selectivity-class AXL,GRK2,PDK4 3
mdck-mdr1-efflux MDCK-MDR1 efflux ratio 0.462 High 1
mh-clint Mouse hepatocyte intrinsic clearance 133.045 High 1
mppb Mouse plasma protein binding (% unbound) 52.700 High 1
nih-mdck-mdr1-efflux NIH MDCK-MDR1 efflux ratio 0.474 High 1
pfas-class PFAS structural alert (1 = True, 0 = False) 0
pppb Pig plasma protein binding (% unbound) 59.330 % High 1
rh-clint Rat hepatocyte intrinsic clearance 163.682 uL/min/10^6 cells High 1
rh-fuinc Rat hepatocyte fraction unbound in incubation 80.720 % High 1
rppb Rat plasma protein binding (% unbound) 49.370 % High 1
solubility-dd Solubility at pH 7.4 in DMSO 448.745 uM High 1

Approvals:

DateAgencyCompanyOrphan
Jan. 1, 1978 YEAR INTRODUCED

FDA Adverse Event Reporting System (Female)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Hepatocellular injury 408.17 27.03 135 7629 28823 90591860
Cholestasis 393.50 27.03 139 7625 36160 90584523
Hepatic cytolysis 277.36 27.03 103 7661 30813 90589870
Acute generalised exanthematous pustulosis 234.15 27.03 74 7690 13629 90607054
Acute kidney injury 191.30 27.03 182 7582 320205 90300478
Coma 154.45 27.03 89 7675 72543 90548140
Drug reaction with eosinophilia and systemic symptoms 125.85 27.03 65 7699 42693 90577990
Thrombocytopenia 102.83 27.03 107 7657 208618 90412065
Mixed liver injury 93.26 27.03 32 7732 7591 90613092
Drug dependence 87.47 27.03 45 7719 29282 90591401
Peripheral nerve injury 78.16 27.03 17 7747 722 90619961
Pancreatitis acute 78.07 27.03 43 7721 32072 90588611
Metabolic acidosis 77.14 27.03 52 7712 55624 90565059
Anaphylactic shock 75.94 27.03 42 7722 31575 90589108
Rash maculo-papular 73.46 27.03 45 7719 40888 90579795
Foetal megacystis 70.85 27.03 10 7754 26 90620657
Toxic skin eruption 70.68 27.03 32 7732 15742 90604941
Eosinophilia 68.79 27.03 38 7726 28495 90592188
Spinal epidural haemorrhage 67.93 27.03 13 7751 288 90620395
Epidural haemorrhage 67.39 27.03 13 7751 301 90620382
Fatigue 62.05 27.03 12 7752 1154011 89466672
Schizencephaly 60.19 27.03 12 7752 331 90620352
Cerebral haemorrhage foetal 60.01 27.03 12 7752 336 90620347
Somnolence 59.40 27.03 81 7683 209003 90411680
Tonic clonic movements 59.15 27.03 16 7748 1706 90618977
Myoclonus 58.85 27.03 30 7734 19138 90601545
Miosis 58.10 27.03 24 7740 9460 90611223
Symmetrical drug-related intertriginous and flexural exanthema 52.66 27.03 13 7751 966 90619717
Anticholinergic syndrome 51.78 27.03 16 7748 2727 90617956
Hyperkalaemia 50.58 27.03 43 7721 64921 90555762
Drug ineffective 49.27 27.03 29 7735 1384269 89236414
Poisoning deliberate 48.29 27.03 25 7739 16461 90604222
Foetal heart rate abnormal 47.86 27.03 12 7752 950 90619733
Drug interaction 47.55 27.03 85 7679 276368 90344315
Drug use disorder 47.37 27.03 20 7744 8323 90612360
Encephalopathy 47.34 27.03 36 7728 46408 90574275
Agranulocytosis 46.82 27.03 32 7732 34970 90585713
Shock haemorrhagic 43.01 27.03 21 7743 12224 90608459
Epidural analgesia 42.44 27.03 8 7756 163 90620520
Status epilepticus 42.39 27.03 24 7740 18850 90601833
Reversible cerebral vasoconstriction syndrome 41.57 27.03 15 7749 4115 90616568
Hyponatraemia 41.36 27.03 54 7710 133484 90487199
Posterior reversible encephalopathy syndrome 41.19 27.03 25 7739 22314 90598369
Urinary bladder rupture 41.15 27.03 8 7756 193 90620490
Purpura 39.27 27.03 21 7743 14757 90605926
Hypotension 38.98 27.03 86 7678 325311 90295372
Pain 38.10 27.03 19 7745 996322 89624361
Cell death 38.04 27.03 13 7751 3042 90617641
Shock 37.75 27.03 26 7738 28752 90591931
Agitation 37.71 27.03 37 7727 67061 90553622
Prescription drug used without a prescription 37.24 27.03 13 7751 3242 90617441
Hallucination 36.37 27.03 36 7728 65923 90554760
Tachycardia 35.84 27.03 55 7709 157618 90463065
Urinary retention 35.72 27.03 28 7736 37716 90582967
Hepatitis fulminant 34.80 27.03 13 7751 3932 90616751
Granulomatous liver disease 33.45 27.03 9 7755 940 90619743
Pancreatic pseudoaneurysm 33.14 27.03 6 7758 97 90620586
Cutaneous T-cell lymphoma 32.92 27.03 10 7754 1610 90619073
Neutropenia 32.23 27.03 64 7700 224840 90395843
Cardio-respiratory arrest 32.14 27.03 33 7731 63107 90557576
Naevus haemorrhage 31.98 27.03 6 7758 119 90620564
Alopecia 31.57 27.03 3 7761 495068 90125615
Hyperlactacidaemia 30.63 27.03 12 7752 4124 90616559
Abdominal discomfort 30.15 27.03 3 7761 477325 90143358
Term birth 30.04 27.03 6 7758 167 90620516
Hallucinations, mixed 29.75 27.03 13 7751 5876 90614807
Febrile bone marrow aplasia 29.19 27.03 15 7749 9723 90610960
Altered state of consciousness 28.99 27.03 23 7741 31509 90589174
Porphyria 28.94 27.03 6 7758 202 90620481
Blood phosphorus decreased 28.35 27.03 12 7752 5022 90615661
Stevens-Johnson syndrome 28.24 27.03 22 7742 29354 90591329
Pneumonia 27.81 27.03 10 7754 638049 89982634
Skin reaction 27.29 27.03 18 7746 18535 90602148

FDA Adverse Event Reporting System (Male)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Agranulocytosis 224.49 29.71 101 5789 30511 42584934
Cholestasis 177.94 29.71 88 5802 32791 42582654
Rash maculo-papular 161.32 29.71 86 5804 37417 42578028
Eosinophilia 154.45 29.71 80 5810 32819 42582626
Drug reaction with eosinophilia and systemic symptoms 149.35 29.71 85 5805 41990 42573455
Hepatic cytolysis 139.71 29.71 70 5820 26774 42588671
Hepatocellular injury 123.95 29.71 62 5828 23616 42591829
Confusional state 104.71 29.71 122 5768 167475 42447970
Alveolar lung disease 89.31 29.71 19 5871 443 42615002
Pulmonary interstitial emphysema syndrome 85.57 29.71 19 5871 544 42614901
Acute kidney injury 82.59 29.71 166 5724 367171 42248274
Toxic skin eruption 77.90 29.71 38 5852 13692 42601753
Anti factor V antibody 66.89 29.71 14 5876 301 42615144
Acute generalised exanthematous pustulosis 61.73 29.71 28 5862 8567 42606878
Diffuse alveolar damage 60.84 29.71 20 5870 2572 42612873
Mixed liver injury 57.24 29.71 22 5868 4452 42610993
Hyperleukocytosis 56.72 29.71 19 5871 2589 42612856
Urethral valves 51.97 29.71 11 5879 250 42615195
Pancreatitis acute 50.93 29.71 40 5850 33524 42581921
Pancytopenia 50.13 29.71 71 5819 117672 42497773
Ischaemic stroke 48.49 29.71 33 5857 22200 42593245
Drug ineffective 47.96 29.71 14 5876 630183 41985262
Hyperammonaemia 45.29 29.71 22 5868 7844 42607601
Eosinophilic pneumonia 45.16 29.71 19 5871 4855 42610590
Cell death 43.10 29.71 16 5874 2943 42612502
Fatigue 43.02 29.71 5 5885 435636 42179809
Oesophageal achalasia 40.79 29.71 10 5880 444 42615001
Anaphylactic shock 39.99 29.71 30 5860 23487 42591958
Cerebral haematoma 39.41 29.71 18 5872 5592 42609853
Urinary retention 39.13 29.71 38 5852 42176 42573269
Enterobacter pneumonia 38.68 29.71 10 5880 551 42614894
Consciousness fluctuating 38.48 29.71 12 5878 1303 42614142
Secondary adrenocortical insufficiency 36.74 29.71 13 5877 2086 42613359
Generalised oedema 34.00 29.71 23 5867 15313 42600132
Haemolytic anaemia 33.80 29.71 21 5869 12106 42603339
Hepatic encephalopathy 32.55 29.71 23 5867 16419 42599026
Hallucination, visual 31.76 29.71 25 5865 20995 42594450
Hallucination 31.07 29.71 39 5851 57468 42557977
Pyroglutamic acidosis 30.88 29.71 9 5881 776 42614669

FDA Adverse Event Reporting System (Geriatric)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Cholestasis 539.61 23.58 225 13231 64293 110511550
Hepatocellular injury 493.09 23.58 197 13259 50445 110525398
Hepatic cytolysis 397.22 23.58 173 13283 54880 110520963
Acute generalised exanthematous pustulosis 273.89 23.58 102 13354 21562 110554281
Drug reaction with eosinophilia and systemic symptoms 264.38 23.58 149 13307 81946 110493897
Agranulocytosis 251.53 23.58 131 13325 61629 110514214
Acute kidney injury 251.01 23.58 345 13111 635085 109940758
Rash maculo-papular 226.27 23.58 130 13326 74092 110501751
Eosinophilia 222.00 23.58 118 13338 57818 110518025
Coma 158.27 23.58 124 13332 117745 110458098
Toxic skin eruption 146.33 23.58 70 13386 27445 110548398
Mixed liver injury 138.59 23.58 53 13403 12026 110563817
Pancreatitis acute 128.37 23.58 84 13372 60190 110515653
Thrombocytopenia 110.33 23.58 171 13285 348714 110227129
Fatigue 106.50 23.58 12 13444 1215946 109359897
Anaphylactic shock 105.29 23.58 70 13386 51476 110524367
Confusional state 97.57 23.58 191 13265 468489 110107354
Alveolar lung disease 88.74 23.58 20 13436 699 110575144
Pulmonary interstitial emphysema syndrome 87.56 23.58 19 13437 556 110575287
Drug dependence 83.49 23.58 60 13396 49960 110525883
Drug ineffective 83.01 23.58 41 13415 1520499 109055344
Cell death 75.84 23.58 28 13428 5763 110570080
Urinary retention 73.96 23.58 64 13392 69619 110506224
Symmetrical drug-related intertriginous and flexural exanthema 69.48 23.58 20 13436 1877 110573966
Encephalopathy 69.44 23.58 66 13390 80989 110494854
Anti factor V antibody 68.35 23.58 14 13442 308 110575535
Shock haemorrhagic 68.01 23.58 42 13414 27205 110548638
Pancytopenia 66.50 23.58 103 13353 209510 110366333
Peripheral nerve injury 64.78 23.58 17 13439 1131 110574712
Hallucination 63.95 23.58 70 13386 101362 110474481
Tonic clonic movements 60.77 23.58 20 13436 2932 110572911
Miosis 60.30 23.58 36 13420 21947 110553896
Epidural haemorrhage 59.28 23.58 13 13443 400 110575443
Metabolic acidosis 56.32 23.58 65 13391 99679 110476164
Spinal epidural haemorrhage 56.16 23.58 12 13444 326 110575517
Myoclonus 56.02 23.58 40 13416 32958 110542885
Diffuse alveolar damage 54.59 23.58 20 13436 4027 110571816
Hyperleukocytosis 53.93 23.58 19 13437 3420 110572423
Haemolytic anaemia 51.58 23.58 32 13424 20888 110554955
Status epilepticus 50.69 23.58 37 13419 31534 110544309
Pain 50.09 23.58 27 13429 954928 109620915
Cerebral haematoma 49.66 23.58 24 13432 9608 110566235
Cardio-respiratory arrest 48.55 23.58 65 13391 115771 110460072
Drug interaction 48.30 23.58 152 13304 500031 110075812
Ischaemic stroke 48.08 23.58 40 13416 41223 110534620
Foetal heart rate abnormal 47.90 23.58 12 13444 663 110575180
Neutropenia 46.92 23.58 125 13331 374495 110201348
Somnolence 46.46 23.58 108 13348 297341 110278502
Febrile bone marrow aplasia 46.35 23.58 28 13428 17437 110558406
Posterior reversible encephalopathy syndrome 46.19 23.58 36 13420 33825 110542018
Cholestatic liver injury 46.12 23.58 21 13435 7355 110568488
Drug use disorder 45.46 23.58 28 13428 18046 110557797
Poisoning deliberate 44.88 23.58 32 13424 26299 110549544
Lichenoid keratosis 42.77 23.58 19 13437 6283 110569560
Gamma-glutamyltransferase increased 41.60 23.58 44 13412 61265 110514578
Hepatitis 41.57 23.58 53 13403 90001 110485842
Agitation 40.74 23.58 59 13397 112992 110462851
Eosinophilic pneumonia 40.28 23.58 19 13437 7208 110568635
Pneumonia 40.13 23.58 29 13427 876685 109699158
Epidural analgesia 39.55 23.58 8 13448 165 110575678
Anticholinergic syndrome 39.33 23.58 16 13440 4264 110571579
Hallucination, visual 39.25 23.58 35 13421 39570 110536273
Hyperammonaemia 39.00 23.58 23 13433 13709 110562134
Hepatitis acute 37.13 23.58 25 13431 18741 110557102
Hepatic encephalopathy 36.30 23.58 29 13427 28227 110547616
Hyperbilirubinaemia 36.29 23.58 30 13426 30641 110545202
Anaphylactic reaction 35.98 23.58 56 13400 114244 110461599
Headache 35.64 23.58 33 13423 882344 109693499
Secondary adrenocortical insufficiency 35.42 23.58 15 13441 4419 110571424
Reversible cerebral vasoconstriction syndrome 34.40 23.58 15 13441 4746 110571097
Enterobacter pneumonia 34.33 23.58 9 13447 596 110575247
Hyperthermia 34.30 23.58 25 13431 21247 110554596
Bradypnoea 34.17 23.58 18 13438 8631 110567212
Nasopharyngitis 34.12 23.58 4 13452 394357 110181486
Hallucinations, mixed 34.09 23.58 18 13438 8675 110567168
Abdominal discomfort 34.06 23.58 4 13452 393854 110181989
Oesophageal achalasia 34.01 23.58 10 13446 1011 110574832
Consciousness fluctuating 33.93 23.58 12 13444 2184 110573659
Cytokine release syndrome 33.43 23.58 42 13414 70264 110505579
Altered state of consciousness 33.27 23.58 38 13418 57588 110518255
Weight increased 32.29 23.58 6 13450 419638 110156205
Pancreatic pseudoaneurysm 31.10 23.58 6 13450 96 110575747
Transaminases increased 30.35 23.58 38 13418 63352 110512491
Drug hypersensitivity 30.00 23.58 9 13447 454081 110121762
Naevus haemorrhage 29.88 23.58 6 13450 119 110575724
Prothrombin time ratio decreased 29.64 23.58 10 13446 1582 110574261
Weight decreased 29.64 23.58 10 13446 468047 110107796
Purpura 29.15 23.58 24 13432 24364 110551479
Hyponatraemia 28.61 23.58 74 13382 217579 110358264
Generalised oedema 28.20 23.58 26 13430 30678 110545165
Infusion related reaction 28.17 23.58 6 13450 381156 110194687
Renal failure 27.71 23.58 75 13381 226499 110349344
Lactic acidosis 27.17 23.58 44 13412 92767 110483076
Peripheral swelling 26.70 23.58 8 13448 404026 110171817
Prescription drug used without a prescription 26.25 23.58 13 13443 5483 110570360
Arthralgia 26.11 23.58 34 13422 779598 109796245
Porphyria 25.88 23.58 6 13450 238 110575605
Disorientation 25.62 23.58 37 13419 70634 110505209
Rash pustular 25.16 23.58 17 13439 12812 110563031
Anuria 25.09 23.58 22 13434 24319 110551524
Respiratory distress 24.88 23.58 36 13420 68838 110507005
Abdominal pain upper 24.78 23.58 6 13450 349105 110226738
Alopecia 24.51 23.58 7 13449 364746 110211097
Seizure 23.90 23.58 70 13386 221115 110354728
Hyperlactacidaemia 23.85 23.58 14 13442 8272 110567571

FDA Adverse Event Reporting System (Pediatric)

None

Pharmacologic Action:

SourceCodeDescription
ATC N02BG06 NERVOUS SYSTEM
ANALGESICS
OTHER ANALGESICS AND ANTIPYRETICS
Other analgesics and antipyretics
MeSH PA D000700 Analgesics
MeSH PA D018689 Sensory System Agents
MeSH PA D018712 Analgesics, Non-Narcotic
CHEBI has role CHEBI:35481 non-narcotic analgesic
CHEBI has role CHEBI:35640 adrenergic uptake inhibitor
CHEBI has role CHEBI:50949 serotonin uptake inhibitor
CHEBI has role CHEBI:51039 dopamine uptake inhibitor
CHEBI has role CHEBI:35480 analgesic
CHEBI has role CHEBI:35610 antineoplastic agent

Related Drugs by ATC class:

N02BG Other analgesics and antipyretics 8 drugs

Drug Use | Suggest Off label Use Form| |View source of the data|

None




๐Ÿถ Veterinary Drug Use

None

๐Ÿถ Veterinary products

None

Acid dissociation constants calculated using MoKa v3.0.0

Dissociation levelDissociation constantType (acidic/basic)
pKa1 7.85 Basic

Orange Book patent data (new drug applications)

None

Orange Book exclusivity data (new drug applications)

None

Bioactivity Summary:

TargetClassPharosUniProtActionTypeActivity value
(-log[M])
Mechanism
action
Bioact sourceMoA source
Sodium channel protein type 5 subunit alpha Ion channel WOMBAT-PK
Sodium-dependent serotonin transporter Transporter Ki 7.54 PDSP
Sodium-dependent noradrenaline transporter Transporter Ki 7.48 PDSP
5-hydroxytryptamine receptor 2A GPCR Ki 5.77 PDSP
5-hydroxytryptamine receptor 2B GPCR Ki 6.48 PDSP
5-hydroxytryptamine receptor 2C GPCR Ki 7.25 PDSP
Sodium-dependent dopamine transporter Transporter Ki 6.28 PDSP

External reference:

IDSource
N0000167217 NUI
D05133 KEGG_DRUG
C0027556 UMLSCUI
CHEBI:88316 CHEBI
CHEMBL465026 ChEMBL_ID
DB12293 DRUGBANK_ID
CHEMBL1407915 ChEMBL_ID
D009340 MESH_DESCRIPTOR_UI
4450 PUBCHEM_CID
3018 INN_ID
23327-57-3 SECONDARY_CAS_RN
4UP8060B7J UNII
4324 RXNORM
001582 NDDF
004636 NDDF
322300008 SNOMEDCT_US
350324006 SNOMEDCT_US
419768004 SNOMEDCT_US
4UP8060B7J INXIGHT DRUGS

Pharmaceutical products:

None