What are the possible side effects of methamphetamine?
If you experience any of the following serious side effects, stop taking methamphetamine and seek emergency medical attention: an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives); an irregular heartbeat or very high blood pressure (severe headache, blurred vision); hallucinations, abnormal behavior, or confusion. Other, less serious side effects may be more likely to occur. Continue to take methamphetamine and talk to your doctor if you experience: restlessness or tremor, nervousness or anxiety, headache or dizziness, insomnia, dry mouth or an unpleasant taste in your mouth, diarrhea or constipation, or impotence or changes in your sex drive.
