Molly, the name of which is taken from the word molecule, is a purer form of Ecstasy. The main ingredient in both is MDMA, a type of methamphetamine. When taken, either drug induces feelings of extreme euphoria. 3,4-Methyl​enedioxy​methamphetamine, commonly seen in tablet form and crystal form, is a potent central nervous system stimulant primarily used for recreational purposes. The desired effects include altered sensations, increased energy, empathy, and pleasure.