PMA is a stimulant in the amphetamine class. It has rarely been used intentionally, but it's been an adulterant in the MDMA/MDA market for decades. Due to its toxicity, which is relevant even at relatively low doses, hundreds of deaths have likely come from its use.

The initial effects of a common dose resemble MDMA in some ways, but higher doses don't develop into an entactogen experience. Instead, the primary effects become agitation, confusion, tachycardia, hyperthermia, and hypertension.

It exerts its effects by releasing and inhibiting the reuptake of serotonin. Additionally, it's an MAO-A inhibitor, which contributes to the negative effects.

Overview Page (Including References): http://thedrugclassroom.com/video/paramethoxyamphetamine/

Reddit discussion: https://www.reddit.com/r/TheDrugClassroom/comments/5a6gso/pma/

PMA = para-methoxyamphetamine; paramethoxyamphetamine; 4-methoxyamphetamine, 4-MA, P-Methoxyamphetamine, 1-p-Methoxyphenyl-2-propylamine

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