3, 4-Methylenedioxymethamphetamine, better known as MDMA, is a psychoactive substance of the phenethylamine class. It acts by increasing levels of neurotransmitters serotonin, dopamine, and norepinephrine in the brain (EntheoMedicine). Researchers are investigating whether MDMA may assist in treatment-resistant posttraumatic stress disorder (PTSD), social anxiety in autistic adults, and anxiety in those with life-threatening illness. MDMA is classified as an entactogen due to how it facilitates feelings of closeness with oneself and others, a characteristic that helps treatment-resistant patients with severe trauma open up (EntheoMedicine). In its pure form MDMA is not only a relatively safe drug, but also one that could provide surprising mental health benefits.