Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Structural relationships between MDMA and other psychoactive compounds. The common phenethylamine core is highlighted in red. Compounds are classified as psychostimulants, hallucinogens, or entactogens based on the behavioral responses they produce in experimental animals and their subjective effects in humans.
