LSD research conducted in the 50's and 60's tried to find the potential therapeutic properties of the "psychedelic" LSD experience in relation to being able to help patients that were dying of terminal illnesses to be able to accept death.
Prescription drugs such as OxyContin are the second-most abused drugs among teens, behind marijuana.
Mixing prescription drugs with alcohol can cause nausea, vomiting, headaches, drowsiness, fainting, or loss of coordination.
PCP users sometimes experience a feeling of impending doom.