What may interact with this medicine?

• atazanavir
• nelfinavir

This medicine may also interact with the following medications:

• antibiotics like ampicillin, clarithromycin, tetracycline
• antifungals like itraconazole, ketoconazole, and voriconazole
• antivirals like delavirdine, efavirenz, indinavir
• carbamazepine
• cyclosporine
• dasatinib
• iron supplements
• medicines for anxiety, panic, and sleep like diazepam
• other medicines for stomach acid
• phenytoin or fosphenytoin
• tacrolimus
• tolmetin
• vitamin B12
• warfarin

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non- prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medicine?

What side effects may I notice from receiving this medicine?

• allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
• breathing problems
• chest pain
• dark urine
• fast, irregular heartbeat
• feeling faint or lightheaded, falls
• fever or sore throat
• high blood pressure
• redness, blistering, peeling or loosening of the skin, including inside the mouth
• stomach pain
• swelling of the ankles, legs
• trouble passing urine or change in the amount of urine
• unusual bleeding, bruising
• unusually weak or tired
• yellowing of the eyes or skin

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

• diarrhea or constipation
• dizziness
• dry mouth
• headache
• nausea, vomiting
• stomach gas, upset

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