MDMA, also known as ecstasy or molly, is a synthetic drug that alters mood and perception. It produces feelings of increased energy, pleasure, and distorted senses. Common short-term side effects include anxiety, sweating, and nausea, while long-term use can cause depression, sleep issues, and memory problems. MDMA is commonly found at parties and events and poses health risks due to unknown chemical compositions and interactions. Efforts are being made to control its use and production but new synthetic drugs continue to emerge.