What is ecstasy (MDMA)?

Mood-improving, stimulant, and hallucinogenic subjective effects: combination of amphetamine and lysergic acid diethylamide (LSD) Ecstasy is presented for use as tablets-pills, capsules or powder (crystal). It is usually taken orally, but some user snorted the contents. The MDMA content of pills or tablets varies widely between regions and different brands of pills and fluctuates. Pills may contain other active substances meant to stimulate in a way similar to MDMA, such as amphetamine, mephedrone, methamphetamine, ephedrine or caffeine. In some cases, tablets sold as ecstasy do not even contain any MDMA Nonlinear pharmacokinetics: small increases in the dose of MDMA ingested induce disproportionate increases in plasma concentrations of MDMA