Marijuana - Tetrahydrocannabinol - THC

Marijuana Tetrahydrocannabinol THC


Screening Cut-off: 50 ng/ml
DEA Drug Class: Hallucinogen
Type: Illicit Drug
Trade Names: Dronabinol, Hashish, Marijuana, Marinol, Delta-9-Tetrahydrocannabinol
Street Names: Aunt Mary, Blunt, Blunts, Boom, Bud, Cannabis, Chronic, Doobie, Dope, Gangster, Ganja, Grass, Grifa, Hash, Hash Oil, Hemp, Herb, Hydro, Indo, Joint, Mary Jane, Mj, Mota, Nail, Pot, Reefer, Sinsemilla, Skunk, Smoke, Weed, Yerba

Drug Information

THC (Δ9-tetrahydrocannabinol) is the primary active ingredient in cannabis (Marijuana). When smoked or orally administered, THC produces euphoric effects. Users have impaired short-term memory and slowed learning. They may also experience transient episodes of confusion and anxiety. Long-term, relatively heavy use may be associated with behavioral disorders. The peak effect of marijuana administered by smoking occurs in 20-30 minutes and the duration is 90-120 minutes after one cigarette. Elevated levels of urinary metabolites are found within hours of exposure and remain detectable for 3-10 days after smoking. The main metabolite excreted in the urine is 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid (Δ9-THC-COOH).

Drug Enforcement Agency (DEA) Drug Classification and Effects Information

  • Classification/Schedule I: Illicit drugs with no medical use; high potential for abuse
  • Physical Dependency: Unknown
  • Psychological Dependency: Moderate
  • Tolerance: Yes
  • Possible Effects: Euphoria, relaxed inhibitions, increased appetite, disorientation
  • Effects of Overdose: Fatigue, paranoia, possible psychosis
  • Withdrawal Syndrome: Occasional reports of insomnia, hyperactivity, decreased appetite