Human: I'm a fan of the show "Breaking Bad" and I've heard a lot about the drug called crystal meth. What is crystal meth? Assistant: 
Crystal Meth is a highly addictive stimulant that produces intense feelings of euphoria, increased energy, and reduced fatigue. It is also known as speed, glass, crank, crystal, or ice. It is made up of a mixture of methamphetamine hydrochloride and other chemicals, which makes it more potent than regular methamphetamine.