What side effects may I notice from receiving Zyloprim?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-joint pain
-muscle pain
-rash, fever, and swollen lymph nodes
-redness, blistering, peeling, or loosening of the skin, including inside the mouth
-signs and symptoms of infection like fever or chills; cough; sore throat
-signs and symptoms of kidney injury like trouble passing urine or change in the amount of urine, flank pain
-tingling, numbness in the hands or feet
-unusual bleeding or bruising
-unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-changes in taste
-diarrhea
-drowsiness
-headache
-nausea, vomiting
-stomach upset

This list may not describe all possible side effects for Zyloprim. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.