Precautions

It is very important that your doctor check your or your child's progress closely while receiving this medicine to make sure this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.

Receiving this medicine while you are pregnant can harm your unborn baby. Birth control pills may not work as well to prevent pregnancy when used with this medicine. Use another form of birth control (eg, condoms, spermicide) along with your pills during treatment and for at least 3 months after the last dose. If you think you have become pregnant while receiving this medicine, tell your doctor right away.

This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. Tell your doctor right away if you have a rash, itching, hoarseness, trouble breathing or swallowing, or any swelling of your hands, face, or mouth after receiving this medicine.

Check with your doctor right away if you have loss of appetite, nausea, or pains in stomach, side, or abdomen, possibly radiating to the back. These could be symptoms of pancreatitis (swelling of the pancreas).

This medicine may increase your risk of developing blood clots. Check with your doctor right away if you or your child have swelling and pain in your arms, legs, or stomach, chest pain, trouble breathing, loss of sensation, confusion, or problems with muscle control or speech.

Check with your doctor right away if you have any unusual bleeding or bruising, black, tarry stools, blood in the urine or stools, headache, dizziness, or weakness, pain, swelling, or discomfort in a joint, pinpoint red spots on your skin, unusual nosebleeds, or unusual vaginal bleeding that is heavier than normal. These may be signs of bleeding problems.

Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, vomiting, or yellow eyes or skin. These could be symptoms of a serious liver problem.