Methamphetamine Side Effects

Possible side effects of methamphetamine are listed below. Call your doctor if the adverse effects are severe or continue after a few days.

• Restlessness
• Stomach upset
• Constipation
• Unpleasant taste
• Dry mouth
• Headache
• Loss of appetite
• Weight loss
• Itching
• Decreased libido 
• Sexual dysfunction 
• Insomnia

Some of the side effects of methamphetamine are more serious. Call your doctor right away or seek emergency medical attention if you develop the following symptoms:

• Palpitations (fast or pounding heartbeat)
• Excessive tiredness
• Uncontrolled shaking
• Problems with speech
• Convulsions or seizures
• Motor or verbal tics (involuntary movements or sounds)
• Paranoia (having unusual suspicions about others)
• Delusions (believing things that are not true)
• Hallucinations (seeing or hearing things that don’t exist)
• Fever, sweating, confusion, shivering, agitation, hallucinations, fast heartbeat, loss of coordination, severe muscle stiffness, muscle twitching, nausea, vomiting, diarrhea
• Abnormal excitement (mania)
• Aggression or hostility
• Changes in vision, such as blurred vision
• Pale or blue fingers and toes
• Unexplained wounds on the fingers or toes
• Burning, tingling, or pain in the hands or feet
• Slowed growth or weight loss in children

The above list may not include all the possible adverse reactions of methamphetamine. Contact your healthcare provider if the adverse effects are unusual or severe or if they do not get better over time. You can also report unusual side effects to the Food and Drug Administration at 1-800-FDA-1088.

Methamphetamine Overdose: In case of an overdose of methamphetamine, call your doctor immediately. You can also call your local poison control center or the national poison control center at 1-800-222-1222. Overdose symptoms may include fever, restlessness, tiredness, uncontrolled shaking, confusion, fast breathing, irregular heartbeat, nausea, vomiting, diarrhea, stomach cramps, panic, depression, aggressive behavior, confusion, hallucinations, seizures, loss of consciousness, or coma.

Source: FDA