Commonly Abused Drugs

Review this page which describes the acute effects and the health risks of both legal and illegal drugs.

Commonly Abused Drugs

Marijuana (Cannabis)

Marijuana is made from the hemp plant, Cannabis sativa. The main psychoactive (mind-altering) chemical in marijuana is delta-9-tetrahydrocannabinol, or THC. 

Street Names Commercial Names Common Forms Common Ways Taken DEA Schedule
Blunt, Bud, Dope, Ganja, Grass, Green, Herb, Joint, Mary Jane, Pot, Reefer, Sinsemilla, Skunk, Smoke, Trees, Weed; Hashish: Boom, Gangster, Hash, Hemp Various brand names in states where the sale of marijuana is legal Greenish-gray mixture of dried, shredded leaves, stems, seeds, and/or flowers; resin (hashish) or sticky, black liquid (hash oil) Smoked, eaten (mixed in food or brewed as tea) I

Possible Health Effects
Short-term Enhanced sensory perception and euphoria followed by drowsiness/relaxation; slowed reaction time; problems with balance and coordination; increased heart rate and appetite; problems with learning and memory; hallucinations; anxiety; panic attacks; psychosis.
Long-term Mental health problems; chronic cough; frequent respiratory infections.
Other Health-related Issues Youth: possible loss of IQ points when repeated use begins in adolescence.

Pregnancy: babies born with problems with attention, memory, and problem solving.
In Combination with Alcohol Increased heart rate, blood pressure; further slowing of mental processing and reaction time.
Withdrawal Symptoms Irritability, trouble sleeping, decreased appetite, anxiety.
Treatment options
Medications There are no FDA-approved medications to treat marijuana addiction.
Behavioral Therapies
  • Cognitive-behavioral therapy (CBT)
  • Contingency management, or motivational incentives
  • Motivational Enhancement Therapy (MET)
  • Behavioral treatments geared to adolescents