Pharmacology of the psychedelics
Substance | Mechanism of action | Pharmacokinetics |
---|---|---|
Psilocybin | Metabolized in the body to psilocin, which primarily binds to serotonin receptors (5-HT2A) in the brain | Dose-independentBioavailability: 50–70% (oral)Onset of action: 20–30 minutesTime to peak plasma concentration: 2–3 hoursHalf-life: 1.5–3 hours (psilocin)Duration of action: 2–6 hours |
LSD | Binds primarily to serotonin receptors (5-HT2A) in the brain | Dose-dependentBioavailability: 70–72% (oral)Onset of action: 60 minutesTime to peak plasma concentration: 30 minutesHalf-life: 3–4 hoursDuration of action: 6–12 hours |
MDMA | Increases serotonin, dopamine, and norepinephrine levels in the brain by inhibiting their reuptake | Dose-dependentOnset of action: 30–60 minutesTime to peak plasma concentration: 2 hoursHalf-life: 8–9 hoursDuration of action: 6–12 hours |
Mescaline | Binds to serotonin receptors (5-HT2A) and dopamine receptors | Dose-dependentOnset of action: 30 minutesTime to peak plasma concentration: 2 hoursHalf-life: 6 hoursDuration of action: 10–12 hours |
LSD: lysergic acid diethylamide; MDMA: 3,4-methylenedioxymethamphetamine
BY: Data curation, Methodology, Project administration, Formal analysis, Writing—original draft, Writing—review & editing. SM: Data curation, Validation, Writing—original draft. GT: Methodology, Validation, Writing—original draft, Writing—review & editing. AB: Conceptualization, Methodology, Supervision, Writing—original draft, Writing—review & editing.
The authors declare that they have no conflict of interest.
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© The Author(s) 2024.