Pegasys Side Effects
What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. You will need regular blood checks.
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.
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 immediately if any of the following side effects occur:
Black, tarry stools
feeling sad or empty
lack of appetite
loss of interest or pleasure
lower back or side pain
painful or difficult urination
ulcers, sores, or white spots in the mouth
unusual bleeding or bruising
unusual tiredness or weakness
chest pain or discomfort
dry skin and hair
hoarseness or husky voice
muscle cramps and stiffness
rapid, shallow breathing
tightness in the chest
troubled breathing with exertion
Incidence not known
Accumulation of pus in the arms or legs
blistering, peeling, loosening of the skin
increase in heart rate
joint or muscle pain
red, irritated eyes
red skin lesions, often with a purple center
swollen, red, tender area of infection in the arms or legs
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:
cracked, dry, scaly skin
crusting, irritation, itching, or reddening of the skin
feeling unusually cold, shivering
hair loss or thinning of the hair
muscle or joint pain
stomach discomfort or upset
Incidence not known
Change of hearing
loss of hearing
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.