Metyrosine Side Effects
What should I watch for?
Visit your doctor or healthcare professional for regular check ups.
After you stop taking this medicine you may have trouble sleeping for a few days.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Drink several glasses of water a day. This will help to lower your risk of kidney problems.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
hallucinations (seeing, hearing, or feeling things that are not there)
Black, tarry stools
blood in urine or stools
unusual bleeding or bruising
muscle spasms, especially of neck and back
pinpoint red spots on skin
shortness of breath
skin rash and itching
swelling of feet or lower legs
tic-like (jerky) movements of head, face, mouth, and neck
unusual tiredness or weakness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:
Also, after you stop taking this medicine, you may have feelings of increased energy or you may have trouble sleeping. However, these effects should last only for two or three days.
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.