Nicknames:
Speed, uppers, ups, hearts, black beauties, pep pills, copilots, bumble bees, benzedrine, dexedrine, footballs, biphetamine

Effects:
Addiction
Irritability
Anxiety
Increased blood pressure
Paranoia/psychosis
Depression
Aggression
Convulsions
Dilated pupils and blurred vision
Dizziness
Sleeplessness
Loss of appetite; malnutrition
Increased body temperature
Increased risk of exposure to HIV, hepatitis, and other infectious diseases if injected