ANNOUNCER: And if hearing the term "club drugs" conjures up images of a disco ball or a rave you'd be mistaken.
PERRY HALKITIS, PhD: Our research shows very clearly that people do them at home, they do it with their friends, they do it in the park, they do it wherever they need to do it.
ANNOUNCER: So what are the so called "club drugs?"
PERRY HALKITIS, PhD: You know, twenty years ago, we would have been talking about cocaine as the primary drug, but that doesn't seem to be the big problem. It is a problem, but not the biggest problem these days.
We're talking about methamphetamine, also known colloquially as "crystal." We're talking about MDMA, which is known commonly as "ecstasy." We're talking about ketamine and we're talking about Rohypnol and we're still talking about cocaine, to some extent. And we're talking about, more importantly, not just each of these drugs in isolation, but each of these drugs being used often in combination with each other, in combination with alcohol, in combination with prescription drugs such as Viagra.
ANNOUNCER: And that, say experts, is a menacing mixture.
PERRY HALKITIS, PhD: Perhaps the most worrisome is methamphetamine crystal. This is a psychostimulant, it's a form of speed; it's related to ecstasy. It's related to other amphetamines and it has been a huge problem.