orally, intranasally, intravenously, or by inhalation
Picking at skin or hair
Dilated pupils
Rapid eye movement
Reduced appetite
Insomnia
Sudden outbursts or extreme mood swings
Paranoia
Hallucinations
Tweaking
Changes in physical appearance
Anxiety.
Depression.
Mental confusion, psychosis, and paranoia.
Fatigue.
Headaches.
Extreme weight loss.
Picking at your skin, resulting in scabs.
Tooth decay—or, "meth mouth".
Sensation of insects crawling on/under your skin.
Jaw clenching.
Seizures.
Respiratory disease.
Heart disease.
Cardiac arrest.
Stroke.
Death.
Treatment is usually lifelong and often involves a combination of medications, psychotherapy, and coordinated specialty care services.
Stroke, lung cancer, heart disease, etc
Can cause extreme physical, emotional, and behavioral problems that affect every area of the person's life
Common pills for cold remedies are often used as the basis for the production of the drug. The meth “cook” extracts ingredients from those pills and to increase its strength combines the substance with chemicals such as battery acid, drain cleaner, lantern fuel and antifreeze.