
Muscimol
Naturally occurring sedative and hallucinogen

Naturally occurring sedative and hallucinogen
Muscimol, also known as agarin, pantherine, or pyroibotenic acid, is a GABAA receptor agonist with sedative and hallucinogenic effects and the principal psychoactive constituent of Amanita mushrooms such as Amanita muscaria (fly agaric) and Amanita pantherina (panther cap). It is a 3-hydroxyisoxazole alkaloid and is closely related structurally to the neurotransmitter γ-aminobutyric acid (GABA). The compound is widely used as a ligand and agonist of the GABAA receptor in scientific research. Muscimol is typically taken orally, but may also be smoked. Peak effects occur after 1 to 3 hours orally and its duration is 4 to 10 hours but up to 24 hours. The effects of muscimol intoxication in humans include central depression, sedation, induction of sleep, cognitive and motor impairment, hallucinations, perceptual distortion, and muscle twitching, among others. Muscimol acts as a potent GABAA receptor full agonist. However, it acts as a preferential supra-maximal agonist at extrasynaptic δ subunit...
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