Chemical Component Summary

FormulaC13 H13 N3
Molecular Weight211.262
Isomeric SMILESc1cnc2cc3c(cc2n1)[C@@H]4C[C@H]3CNC4

Chemical Details

Formal Charge0
Atom Count29
Chiral Atom Count2
Bond Count32
Aromatic Bond Count11

Drug Info: DrugBank

DrugBank IDDB01273 
  • approved
  • investigational
DescriptionVarenicline is a prescription medication used to treat smoking addiction. This medication is the first approved nicotinic receptor partial agonist. Specifically, varenicline is a partial agonist of the alpha4/beta2 subtype of the nicotinic acetylcholine receptor. In addition it acts on alpha3/beta4 and weakly on alpha3beta2 and alpha6-containing receptors. A full agonism was displayed on alpha7-receptors. On March 9, 2015, the U.S. Food and Drug Administration warned that Varenicline, in the form of Pfizer Inc's quit-smoking drug, Chantix, has been associated with seizures and that some patients who drink while taking the drug may become aggressive or black out. Pfizer is conducting an additional safety study of the drug, results of which are expected in late 2015. The FDA said it is keeping the black box in place at least until the results of the trial are announced.
  • Vareniclinum
  • Vareniclina
  • Varenicline
  • Varenicline tartrate
Brand Names
  • Chantix
  • Nra-varenicline
  • PMS-varenicline
  • Varenicline tartrate
  • Varenicline Tartrate
IndicationFor use as an aid in smoking cessation. Varenicline as a nasal spray is indicated for the symptomatic treatment of dry eye disease.[L38954]
  • Benzazepines
  • Cholinergic Agents
  • Cholinergic Agonists
  • Cholinergic Receptor Agonist
  • Drugs that are Mainly Renally Excreted
  • S01XA28
  • N07BA03
CAS number249296-44-4

Drug Targets

NameTarget SequencePharmacological ActionActions
Neuronal acetylcholine receptor subunit alpha-4MELGGPGAPRLLPPLLLLLGTGLLRASSHVETRAHAEERLLKKLFSGYNK...unknownpartial agonist
Neuronal acetylcholine receptor subunit alpha-7MRCSPGGVWLALAASLLHVSLQGEFQRKLYKELVKNYNPLERPVANDSQP...unknownagonist
Neuronal acetylcholine receptor subunit alpha-3MGSGPLSLPLALSPPRLLLLLLLSLLPVARASEAEHRLFERLFEDYNEII...unknownpartial agonist
Neuronal acetylcholine receptor subunit alpha-6MLTSKGQGFLHGGLCLWLCVFTPFFKGCVGCATEERLFHKLFSHYNQFIR...unknownpartial agonist
Neuronal acetylcholine receptor subunit beta-2MARRCGPVALLLGFGLLRLCSGVWGTDTEERLVEHLLDPSRYNKLIRPAT...unknownpartial agonist
View More
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

Related Resource References

Resource NameReference
PubChem 5310966