An Information Portal to 105097 Biological Macromolecular Structures

QMR is found in 2 entries
  •   Chemical Component Summary   Hide
    Identifiers (6R,10S)-7,8,9,10-tetrahydro-6H-6,10-methanoazepino[4,5-g]quinoxaline
    Formula C13 H13 N3
    Molecular Weight 211.26 g/mol
    Type non-polymer
    Isomeric SMILES
  •   Drug Info: DrugBank Hide
    DrugBank ID DB01273   (Stereoisomeric match)
    Name Varenicline
    • approved
    • investigational
    Description Varenicline 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.
    Synonyms CP-526,555
    Salts Varenicline tartrate
    Brand names
    • Champix
    • Chantix
    Affected organism Humans and other mammals
    Indication For use as an aid in smoking cessation.
    Pharmacology Varenicline is a partial nicotinic acetylcholine receptor agonist, designed to partially activate this system while displacing nicotine at its sites of action in the brain.
    Mechanism of action Varenicline is an alpha-4 beta-2 neuronal nicotinic acetylcholine receptor partial agonist. The drug shows high selectiviyty for this receptor subclass, relative to other nicotinic receptors (>500-fold alpha-3 beta-4, >3500-fold alpha-7, >20,000-fold alpha-1 beta gamma delta) or non-nicotinic receptors and transporters (>2000-fold). The drug competitively inhibits the ability of nicotine to bind to and activate the alpha-4 beta-2 receptor. The drug exerts mild agonistic activity at this site, though at a level much lower than nicotine; it is presumed that this activation eases withdrawal symptoms.
    Route of administration Oral
    Categories Nicotinic Agonists
    ATC-Code N07BA03
    CAS number 249296-44-4
    Name Sequence search Pharmacological action Actions
    Neuronal acetylcholine receptor subunit alpha-4   Search  yes partial agonist
    Neuronal acetylcholine receptor subunit alpha-7   Search  unknown agonist
    Neuronal acetylcholine receptor subunit alpha-3   Search  unknown partial agonist
    Neuronal acetylcholine receptor subunit alpha-6   Search  unknown partial agonist
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