Methamphetamine(crystal meth ) has high potential for abuse and addiction by activating the psychological reward system via triggering a cascading release of dopamine and norepinephrine in the brain. Methamphetamine is FDA approved for the treatment of ADHD and exogenous obesity, dispensed in the USA under the trademark name Desoxyn. 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, twitching, insomnia, numbness, palpitations, arrhythmias, tremors, dry and/or itchy skin, acne, pallor, and with chronic and/or high doses, convulsions,heart attack,stroke,and death.