XTC, also known as MDMA, is a stimulant drug that is often sold in pill form. It can cause feelings of euphoria and intimacy as well as physical side effects like increased heart rate, dehydration, and panic attacks. Long term use has been linked to depression, anxiety, and other mental health issues. While not physically addictive, some users report mental dependence on the drug's effects. Fear and panic attacks while using can be reduced by ensuring one is in a good mental state before taking the drug. If an overdose occurs, remaining calm and seeking medical help is important.