there are 3 main types of hallucinogens. serotonergic agonists (dmt, psilocybin, bufetonin, lysegic acid diethylamide, ibogaine, 5 methoxy dmt) non competitive Nmda receptor antagonists (PCP, ketamine, dextromethorphan) and anticholinergics for the muscarinic receptors (atropine, benadryl, scopolamine, hyoscine) salvia is weird since it targets a specific opioid receptor that is responsible for some learning.
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