When someone who is using LSD develops a tolerance to the drug but stops taking it for a short period of time, such as a week, the drug will once again become effective.
PCP is a synthetic drug known as a "dissociative" drug, distorting perceptions of sight and sound and producing feelings of detachment.
Irreversible physical side effects due to inhalant abuse can include bone marrow damage when gasoline is used for "huffing'.
Instances of alcohol-related admissions to acute care hospitals for older Americans are similar to those for heart attacks.