MDA is closely related to MDMA. The substance differs from MDMA mainly in how well one's own feelings are perceived(entactogenic effect), how strongly empathic states(empathic effect) and hallucinogenic effects occur.
MDA (3,4-methylenedioxyamphetamine,also:1-[1-3-benzodioxol-5-yl]-2-proponamine) is a synthetic amphetamine derivative; together with MDMA it occasionally occurs in MDMA pills, less frequently in pure form.
Dosage:
1.3 mg per kg body weight (1.3 mg x 80 kg = 100 mg)
Harder and stronger, less "magical" than MDMA, also has a mild hallucinogenic effect.
Onset of action:
after 30 - 45 minutes
Duration of effect:
8 - 12 hours
Nausea to nausea, dry mouth, cramping of the jaw muscles, sweating, coordination disorders, sleep disorders and trembling.
Long-term risks:
MDA is both neurotoxic and hepatotoxic (liver-damaging); regular use can lead to schizophrenia-like symptoms.