Mixing prescription drugs with alcohol may lead to respiratory depression, coma, and death.
Ketamine users have often report experiencing sensations that range from a pleasant feeling of floating to being separated from their bodies.
There are several instances of individuals under the influence of GHB suffering from convulsions that often required emergency medical care.
The estimated number of lifetime non-medical users of prescription pain relievers increased significantly from 29.6 million in 2002 to 31.8 million in 2004.