Amphetamine 
Category: Stimulant
Names: Speed, meth, crank, crystal, black beauties, bennies
Usage: Swallowed, smoked (ice, crystal), injected
Duration: Two to four hours
Description: Capsules, white powder, tablets, liquid
Immediate effects:
Excitement, increases self-confidence, increases wakefulness and mental alertness, palpitations, talkativeness, poor concentration
Delayed effects:
Weight loss, anxiety, insomnia, irritability, hyperactivity, severe depression, rapid mood changes, heart and brain damage
Overdose:
Lack of consciousness, convulsions, rapid pulse, slowed respiration, cold and clammy skin, death
Withdrawal:
Depression, decreased energy, lack of interest in environment
Signs & Symptoms:
Dilated pupils, profuse sweating, rapid respiration, increased heart rate, confusion, talkativeness, inability to concentrate, heightened aggressive behavior, anxiety, fatigue and depression
Did you know?
- Regular use produces strong psychological dependence and increasing tolerance.
- High doses may cause toxic psychosis resembling schizophrenia.
- With increased use, the stimulating effects reverse, and the result is increased fatigue and depression.
- Use may induce heart attack or stroke.