Methamphetamine: World's Most Dangerous Drug

In accordance with Wikipedia, methamphetamine has medical uses as well as the potential to cause addiction. Methamphetamine addiction typically occurs when a person begins to use the drug as a stimulant, for its powerful enhancing effects on sex, mood and energy, alertness and ability to concentrate, and weight loss and appetite suppression, among its other psychological and physical effects. Over time tolerance develops, and users have greater difficulty functioning and experiencing pleasure than they did before, which persists indefinitely due to neurotoxicity produced by methamphetamine in long-term recovered addicts.

Nicknames for methamphetamine are numerous and vary significantly from region to region, some common nicknames for methamphetamine include "crank", "meth", "ice", "crystal", "glass", (USA). "shabu" or "syabu" (Japan and Philippines), "tik" (South Africa), "P", "speed" (New Zealand), "piko" (Slovakia), and "yaa baa" (Thailand).

-Physical effects:

Physical effects can include anorexia, hyperactivity, dilated pupils, flushing, restlessness, dry mouth, headache, tachycardia, bradycardia, tachypnea, hypertension, hypotension, hyperthermia, diaphoresis, diarrhea, constipation, blurred vision, dizziness, muscle twitches, insomnia, numbness, palpitations, arrhythmias, tremors, dry and/or itchy skin, acne, pallor, and with chronic and/or high dosages, convulsions, heart attack, stroke, and death can occur.

- Psychological effects:

Psychological effects can include euphoria, anxiety, increased libido, increased alertness, increased concentration, increased energy, increased self-esteem, increased self-confidence, increased excitation, increased sociability, increased irritability, increased aggression, psychomotor agitation, hubris, excessive feelings of power and/or superiority, repetitive and/or obsessive behaviors, paranoia, and with chronic and/or high doses, amphetamine psychosis can occur.

- Withdrawal effects:

Withdrawal is characterized by excessive sleeping, excessive eating, and depression, often accompanied by anxiety and drug-craving.