The various physical effects of methamphetamine include, increased energy, change in libido, increased sweating, decrease in appetite (anorexia), insomnia, dilated pupils, tightened jaw muscles (trismus), teeth grinding (bruxism), itching, nausea, vomiting, diarrhea, shortness of breath, involuntary body movements (twitches, grimacing, lip smacking, etc), increased heart rate, increased blood pressure, vasoconstriction, dry mouth, and a difficulty in urination. Serious physical effects include, possibly fatal lung and kidney disorders, possible brain damage, lowered resistance to illnesses, liver damage, heart attack, and stroke. No one knows how many times a person can use ecstasy before becoming addicted or who's most vulnerable to ecstasy addiction. Genetic makeup, living environment, and other factors probably play a role in a person's susceptibility to addiction to any drug. Crack is a highly addictive form of cocaine that is typically smoked. The term "crack" refers to the crackling sound heard when the substance is heated, presumably from the sodium bicarbonate that is used in the production of crack. Other chemicals or substances are often added to, or substituted for, MDMA in ecstasy tablets, such as caffeine, dextromethorphan (in some cough syrups), amphetamines, or cocaine. |
