What side effects may I notice from receiving Didanosine?

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
-changes in vision
-dizziness
-fast, irregular heartbeat
-muscle pain
-nausea, vomiting, unusual upset stomach or stomach pain
-pain, tingling, numbness in the hands or feet
-signs and symptoms of liver injury like dark yellow or brown urine; general ill feeling or flu-like symptoms; light-colored stools; loss of appetite; nausea; right upper belly pain; unusually weak or tired; yellowing of the eyes or skin
-signs of infection - fever or chills, cough, sore throat, pain or trouble passing urine
-unusual bleeding or bruising

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

-diarrhea
-headache
-weight gain around waist, back, or thinning of face, arms, legs

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