Crystal meth, also known as methamphetamine, is a highly addictive synthetic stimulant drug that affects the central nervous system. It is commonly found in the form of small, translucent crystals that resemble ice or glass, hence its nickname “crystal meth.” This drug can be smoked, snorted, injected or swallowed, and it produces a powerful and long-lasting high that can lead to increased energy, alertness, and a sense of euphoria.