Quest Diagnostics

Drug testing for LSD

LSD, or lysergic acid diethylamide, is a hallucinogenic compound and one of the most potent mood-changing chemicals according to the National Institute on Drug Abuse. Discovered in 1938, it is derived from lysergic acid which is produced by fungus and commonly referred to as simply “acid.” It is a Schedule I drug, as it has no approved medical use and high abuse potential, under the Controlled Substances Act of 1970.
LSD is typically sold as pills or added to absorbent paper that is divided into small, single-dose squares. Users may experience dilated pupils, increased heart rate, sweating, loss of appetite, mood swings, delusions and visual hallucinations with heightened sounds and colors. Depending on the dose, hallucinations can last up to 12 hours and may cause panic, anxiety and fear. Some users even experience flashbacks, or reoccurrences of certain aspect of the drug experience, as long as a year or more after using the drug. LSD users can develop a tolerance over time, requiring the need for more drug to achieve desired effects.  
View the Quest Diagnostics Drug Testing Index™ for trends in drug testing. 
Download our reference guide for Common Drugs of Abuse.