3,4-Methylenedioxymethamphetamine, better known as MDMA, ecstasy, or molly is an entactogen which is a class of drugs that produce a feeling of communion or oneness with others. Unlike the rest of the top five psychedelic drugs, MDMA is most often used as a party drug. Other hallucinogens require careful attention to “set and setting,” the user’s mindset and the place they are using. In loud, crowded settings, users increase their likelihood of a bad trip.