Precautions

Drug information provided by: Micromedex

It is very important that your doctor check your or your child's progress at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.

If your or your child's symptoms do not improve, or if they become worse, check with your doctor. You may need to take this medicine for several months before your infection gets better.

Do not use this medicine together with alprazolam, cisapride, colchicine, disopyramide, dofetilide, dronedarone, eplerenone, felodipine, irinotecan, lovastatin, lurasidone, methadone, nisoldipine, oral midazolam, pimozide, quinidine, ranolazine, simvastatin, terfenadine, tolvaptan, triazolam, or ergot medicines (such as dihydroergotamine, ergometrine, ergotamine, methylergometrine). Using these medicines together may cause serious unwanted effects.

Liver problems may occur while you are taking this medicine. Check with your doctor right away if you are having more than one of these symptoms: abdominal or stomach pain or tenderness, clay-colored stools, dark urine, decreased appetite, fever, headache, itching, loss of appetite, nausea and vomiting, skin rash, swelling of the feet or lower legs, unusual tiredness or weakness, or yellow eyes or skin.

Contact your doctor right away if you have any changes to your heart rhythm. You might feel dizzy or faint, or you might have a fast, pounding, or uneven heartbeat. Make sure your doctor knows if you or anyone in your family has ever had a heart rhythm problem such as QT prolongation.

This medicine may cause serious allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth while you are using this medicine.

Avoid drinking alcohol while you are using this medicine.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.