Drug results: 63
| phenobarbital | A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations. |
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| hyoscyamine | The 3(S)-endo isomer of atropine. |
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| scopolamine | An alkaloid from SOLANACEAE, especially DATURA and SCOPOLIA. Scopolamine and its quaternary derivatives act as antimuscarinics like ATROPINE, but may have more central nervous system effects. Its many uses include an anesthetic premedication, the treatment of URINARY INCONTINENCE and MOTION SICKNESS, an antispasmodic, and a mydriatic and cycloplegic. |
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| atropine | An alkaloid, originally from Atropa belladonna, but found in other plants, mainly SOLANACEAE. Hyoscyamine is the 3(S)-endo isomer of atropine. |
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| ergotamine | A vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an oxytocic agent and in the treatment of MIGRAINE DISORDERS. |
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| caffeine | A methylxanthine naturally occurring in some beverages and also used as a pharmacological agent. Caffeine's most notable pharmacological effect is as a central nervous system stimulant, increasing alertness and producing agitation. It also relaxes SMOOTH MUSCLE, stimulates CARDIAC MUSCLE, stimulates DIURESIS, and appears to be useful in the treatment of some types of headache. Several cellular actions of caffeine have been observed, but it is not entirely clear how each contributes to its pharmacological profile. Among the most important are inhibition of cyclic nucleotide PHOSPHODIESTERASES, antagonism of ADENOSINE RECEPTORS, and modulation of intracellular calcium handling. |
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| chlorphenamine | A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than PROMETHAZINE. |
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| phenylephrine | An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent. |
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| ergometrine | An ergot alkaloid (ERGOT ALKALOIDS) with uterine and VASCULAR SMOOTH MUSCLE contractile properties. |
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| reserpine | An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use. |
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| methysergide | An ergot derivative that is a congener of LYSERGIC ACID DIETHYLAMIDE. It antagonizes the effects of serotonin in blood vessels and gastrointestinal smooth muscle, but has few of the properties of other ergot alkaloids. Methysergide is used prophylactically in migraine and other vascular headaches and to antagonize serotonin in the carcinoid syndrome. |
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| alpha-Ergocryptine | a component of the ergotoxine complex; it is the main ergot alkaloid of Japanese & South American wid grasses; minor descriptor (76-86); on-line & INDEX MEDICUS search ERGOLINES (76-86); RN given refers to ((5'alpha)-isomer) |
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| vinorelbine | A vinca alkaloid related to VINBLASTINE that is used as a first-line treatment for NON-SMALL CELL LUNG CANCER, or for advanced or metastatic BREAST CANCER refractory to treatment with ANTHRACYCLINES. |
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| vincamine | A major alkaloid of Vinca minor L., Apocynaceae. It has been used therapeutically as a vasodilator and antihypertensive agent, particularly in cerebrovascular disorders. |
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| papaverine | An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels. |
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| vincristine | An antitumor alkaloid isolated from VINCA ROSEA. (Merck, 11th ed.) |
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| theobromine | 3,7-Dimethylxanthine. The principle alkaloid in Theobroma cacao (the cacao bean) and other plants. A xanthine alkaloid that is used as a bronchodilator and as a vasodilator. It has a weaker diuretic activity than THEOPHYLLINE and is also a less powerful stimulant of smooth muscle. It has practically no stimulant effect on the central nervous system. It was formerly used as a diuretic and in the treatment of angina pectoris and hypertension. (From Martindale, The Extra Pharmacopoeia, 30th ed, pp1318-9) |
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| bromocriptine | A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion. |
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| vinblastine | Antitumor alkaloid isolated from Vinca rosea. (Merck, 11th ed.) |
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| viloxazine | A morpholine derivative used as an antidepressant. It is similar in action to IMIPRAMINE. The mechanism of action of viloxazine in the treatment of ADHD is unclear; however, it is thought to be through inhibiting the reuptake of norepinephrine. |
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| cocaine | An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake. |
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| quinidine | An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission. |
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| sparteine | A quinolizidine alkaloid isolated from several FABACEAE including LUPINUS; SPARTIUM; and CYTISUS. It has been used as an oxytocic and an anti-arrhythmia agent. It has also been of interest as an indicator of CYP2D6 genotype. |
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| tubocurarine | A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae. |
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| syrosingopine |
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| dihydroergocornine | A 9,10alpha-dihydro derivative of ERGOTAMINE that contains isopropyl sidechains at the 2' and 5' positions of the molecule. |
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| lisuride | An ergot derivative that acts as an agonist at dopamine D2 receptors (DOPAMINE AGONISTS). It may also act as an antagonist at dopamine D1 receptors, and as an agonist at some serotonin receptors (SEROTONIN RECEPTOR AGONISTS). |
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| vinpocetine | whole issue of Arzneim Forsch (23 articles) discuss this drug; Arzneim Forsch 26(10a);1976; RN given refers to parent cpd with unspecified isomeric designation |
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| tryptophan | An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals. |
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| metergoline | A dopamine agonist and serotonin antagonist. It has been used similarly to BROMOCRIPTINE as a dopamine agonist and also for MIGRAINE DISORDERS therapy. |
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| vindesine | Vinblastine derivative with antineoplastic activity against CANCER. Major side effects are myelosuppression and neurotoxicity. Vindesine is used extensively in chemotherapy protocols (ANTINEOPLASTIC COMBINED CHEMOTHERAPY PROTOCOLS). |
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| strychnine | An alkaloid found in the seeds of STRYCHNOS NUX-VOMICA. It is a competitive antagonist at glycine receptors and thus a convulsant. It has been used as an analeptic, in the treatment of nonketotic hyperglycinemia and sleep apnea, and as a rat poison. |
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| emetine | The principal alkaloid of ipecac, from the ground roots of Uragoga (or Cephaelis) ipecacuanha or U. acuminata, of the Rubiaceae. It is used as an amebicide in many different preparations and may cause serious cardiac, hepatic, or renal damage and violent diarrhea and vomiting. Emetine inhibits protein synthesis in EUKARYOTIC CELLS but not PROKARYOTIC CELLS. |
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| noscapine | A naturally occurring opium alkaloid that is a centrally acting antitussive agent. |
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| vinburnine |
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| ajmaline | An alkaloid found in the root of RAUWOLFIA SERPENTINA, among other plant sources. It is a class Ia antiarrhythmic agent that apparently acts by changing the shape and threshold of cardiac action potentials. |
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| terguride | pronounced antifertility agent in rats; lactation suppressor in other species; serotonin antagonist; RN given refers to parent cpd; structure |
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| dihydroergocryptine | A 9,10alpha-dihydro derivative of ERGOTAMINE that contains an isopropyl sidechain at the 2' position and an alpha-isobutyl sidechain at 5'alpha position of the molecule. |
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| morphine | The principal alkaloid in opium and the prototype opiate analgesic and narcotic. Morphine has widespread effects in the central nervous system and on smooth muscle. |
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| metoserpate |
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| dihydroergotamine | A 9,10alpha-dihydro derivative of ERGOTAMINE. It is used as a vasoconstrictor, specifically for the therapy of MIGRAINE DISORDERS. |
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| methylergometrine | A homolog of ERGONOVINE containing one more CH2 group. (Merck Index, 11th ed) |
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| quinine | An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood. |
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| yohimbine | A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION. |
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| cabergoline | An ergoline derivative and dopamine D2-agonist that inhibits PROLACTIN secretion. It is used in the management of HYPERPROLACTINEMIA, and to suppress lactation following childbirth for medical reasons. Cabergoline is also used in the management of PARKINSON DISEASE. |
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| colchicine | A major alkaloid from Colchicum autumnale L. and found also in other Colchicum species. Its primary therapeutic use is in the treatment of gout, but it has been used also in the therapy of familial Mediterranean fever (PERIODIC DISEASE). Potential to limit COVID-19-related myocardial damage has been hypothesized based on the drug’s mechanisms of action and promising results of ongoing research on colchicine in various cardiac conditions. However, the drug's safety and efficacy for treatment of COVID-19 is not yet established. |
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| demecolcine | An alkaloid isolated from Colchicum autumnale L. and used as an antineoplastic. |
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| vinflunine | inhibits tubulin assembly |
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| vintafolide | has significant antiproliferative activity and tolerability, thus lending support to an ongoing phase 1 trial for the treatment of advanced malignancies |
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| prajmalium | A derivative of the rauwolfia alkaloid AJMALINE. It is an anti-arrhythmia agent, but may cause liver damage. |
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| brovincamine |
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| bietaserpine | hypotensive agent; structure |
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| methoserpidine |
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| beta-Ergocryptine |
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| nicergoline | An ergot derivative that has been used as a cerebral vasodilator and in peripheral vascular disease. It may ameliorate cognitive deficits in CEREBROVASCULAR DISORDERS. |
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| lysergide | Semisynthetic derivative of ergot (Claviceps purpurea). It has complex effects on serotonergic systems including antagonism at some peripheral serotonin receptors, both agonist and antagonist actions at central nervous system serotonin receptors, and possibly effects on serotonin turnover. It is a potent hallucinogen, but the mechanisms of that effect are not well understood. |
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| ergoloid mesylates | A mixture of the mesylates (methane sulfonates) of DIHYDROERGOCORNINE; DIHYDROERGOCRISTINE; and the alpha- and beta-isomers of DIHYDROERGOCRYPTINE. The substance produces a generalized peripheral vasodilation and a fall in arterial pressure and has been used to treat symptoms of mild to moderate impairment of mental function in the elderly. | |
| dihydroergocristine | A 9,10alpha-dihydro derivative of ERGOTAMINE that contains an isopropyl sidechain at the 2' position of the molecule. |
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| epicriptine | a sec-butyl group replaces the isobutyl group of dihydroergocryptine |
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| buprenorphine | A derivative of the opioid alkaloid THEBAINE that is a more potent and longer lasting analgesic than MORPHINE. It appears to act as a partial agonist at mu and kappa opioid receptors and as an antagonist at delta receptors. The lack of delta-agonist activity has been suggested to account for the observation that buprenorphine tolerance may not develop with chronic use. |
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| rescinnamine |
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| deserpidine | minor descriptor (66-84); on-line search RESERPINE/AA (75-84), RESERPINE (66-74); Index Medicus search RESERPINE/AA (75-84), YOHIMBANS (69-74), RESERPINE (66-68); RN given refers to (3beta,16beta,17alpha,18beta,20alpha)-isomer |
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| anhydrovinblastine |
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