MDMA (3,4-methylenedioxy-methamphetimine), which is more commonly known as Ecstasy , and more recently Molly.
It is a dangerous psychoactive drug that acts as a stimulant and a hallucinogen, as such it can cause increased heart rate, high blood pressure, clenched teeth, muscle tension, blurred vision, faintness, and chills/sweating. In high doses, MDMA interferes with the body's ability to regulate temperature, which may result in a sharp increase in body temperature, which can result in liver, kidney, or cardiovascular failure or even death.
Often times MDMA, in its powder form, is mixed with other drugs, such as: ketamine, dextromethorphan (cough suppressant), ephedrine (stimulant), caffeine, cocaine, methamphetamine, and synthetic cathinones (Bath Salts). While these substances alone can be dangerous and harmful to one's health, when combined with MDMA the danger and risks increase.
MDMA works by increasing the activity of 3 neurotransmitters: serotonin, dopamine, and norepinephrine. Serotonin plays a a role in regulating mood, thus an individual on MDMA may experience euphoric mood for a period of time. However, the surge of serotonin eventually depletes the brain of this important neurotransmitter, which may result in confusion, depression, drug-craving, anxiety, and sleep disturbances.
(National Institute on Drug Abuse, 2013)