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Medicines > classes : Excitantia or Neuroleptic & fda max: None

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Butyrophenone D2 antagonist (1) · Caffeine (1.5–2%) + theobromine + kolanin (a glycoside). (1) · Caffeine (highest of the ''Ilex'' genus) plus saponins that produce ritual vomiting at high doses. (1) · Caffeine (sometimes called 'mateine' historically, though chemically identical), theobromine, theophylline, plus polyphenols. (1) · Caffeine + theophylline + L-theanine. L-theanine (an amino acid unique to tea) modulates glutamate and produces an 'alpha-wave' calming overlay on caffeine's stimulation, hence tea's reputation as a 'cleaner' stimulant than coffee. (1) · Caffeine is a non-selective adenosine A1/A2A receptor antagonist; also weak PDE inhibition. Beans contain theobromine (3,7-DMX) and theophylline (1,3-DMX) in smaller amounts. (1) · D2 receptor antagonist; also H1, alpha-1, muscarinic antagonist (1) · D2/5-HT2A antagonist (1) · D2/5-HT2A antagonist; 5-HT7 antagonist (1) · D2/5-HT2A antagonist; active metabolite of risperidone (1) · D2/5-HT2A antagonist; SRI and NRI (1) · Dibenzoxazepine D2/5-HT2 antagonist (1) · Dihydroindolone D2 antagonist (1) · Diphenylbutylpiperidine D2 antagonist (1) · Highest natural caffeine content of any plant (2–7% by dry weight, ~2–4× coffee). Caffeine is bound to tannins, producing a slower release than pure coffee caffeine. (1) · Multi-receptor antagonist (D2, 5-HT2A, H1, alpha) (1) · Multi-receptor antagonist; low D2 affinity (1) · Phenothiazine D2 antagonist (4) · Primary alkaloid is (S)-(-)-cathinone, a phenylpropanolamine close kin to amphetamine. Releases dopamine and norepinephrine. Also contains cathine (=norpseudoephedrine) and norephedrine. (1) · Primary alkaloid is arecoline, a muscarinic agonist (M1, M2, M3, M4) and partial agonist at nicotinic receptors. Produces alertness, salivation, sweating, mild euphoria. (1) · Primary alkaloid is cocaine, a tropane that blocks reuptake of dopamine and norepinephrine (and serotonin). At low oral doses from leaf chewing, the slow release favors NE-mediated alertness over DA-mediated euphoria. (1) · Primary alkaloid is theobromine (3,7-dimethylxanthine), with minor caffeine. Also contains phenethylamine, anandamide (an endogenous cannabinoid), tryptophan (serotonin precursor), and flavanols. The combined effect is mild stimulation + mood elevation. (1) · Thioxanthene D2 antagonist (1)
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