What is MDMA? MDMA is the abbreviation of 3,4-methylenedioxy-methamphetamine , a synthetic drug  that alters mood and perception. It achieves this by increasing the activity of three brain chemicals in the following ways: Dopamine— when MDMAalters the activity of dopamine it causes a surge in euphoria and increased energy/activity. Norepinephrine— the effect of MDMAon Norepinephrine causes an increase […]