EV1 as a free ligand exists in 2 entries. Examples include: 3IAK 2WEY

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View summary at Ligand Expo

Chemical Component Summary

FormulaC20 H21 N O4
Molecular Weight339.38
Isomeric SMILESCOc1ccc(Cc2nccc3cc(OC)c(OC)cc23)cc1OC

Chemical Details

Formal Charge0
Atom Count46
Chiral Atom Count0
Chiral Atomsn/a
Bond Count48
Aromatic Bond Count17
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB01113 Different stereochemistry
DescriptionAn 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. [PubChem]
  • Papaverine Codecarboxylate
  • Papaverine Hydrochloride
  • Papaverine sulfate
Brand Names
  • Papaverine Hydrochloride
  • Papaverine Hydrochloride Injection USP
  • Alapav
  • Albatran
  • Artegodan
Affected OrganismHumans and other mammals
IndicationFor the treatment of impotence and vasospasms.
PharmacologyPapaverine is a nonxanthine phosphodiesterase inhibitor for the relief of cerebral and peripheral ischemia associated with arterial spasm and myocardial ischemia complicated by arrhythmias. The main actions of Papaverine are exerted on cardiac and smooth muscle. Like qathidine, Papaverine acts directly on the heart muscle to depress conduction and prolong the refractory period. Papaverine relaxes various smooth muscles. This relaxation may be prominent if spasm exists. The muscle cell is not paralyzed by Papaverine and still responds to drugs and other stimuli causing contraction. The antispasmodic effect is a direct one, and unrelated to muscle innervation. Papaverine is practically devoid of effects on the central nervous system. Papaverine relaxes the smooth musculature of the larger blood vessels, especially coronary, systemic peripheral, and pulmonary arteries.
Mechanism of actionPerhaps by its direct vasodilating action on cerebral blood vessels, Papaverine increases cerebral blood flow and decreases cerebral vascular resistance in normal subjects; oxygen consumption is unaltered. These effects may explain the benefit reported from the drug in cerebral vascular encephalopathy.
Route of administration
  • Intramuscular; Intravenous; Subcutaneous
  • Intravenous
  • Alimentary Tract and Metabolism
  • Alkaloids
  • Benzylisoquinolines
  • Cardiovascular Agents
  • Chemical Actions and Uses
  • G04BE52
  • G04BE02
  • A03AD01
CAS number58-74-2
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682