from the
MDMA FAQ:
MDA (3,4-methylenedioxyamphetamine):
MDA was popular for a while during the 70s, when it was known as the '
Love Drug' (a nickname sometimes associated with MDMA as well). It is similar to MDMA in its effects, but is slightly more stimulating. It has been shown in laboratory studies to be approximately twice as
neurotoxic as MDMA, though in some 30 years of human use, case reports do not suggest that it has caused behavioral or
psychological problems.