Precautions

Drug information provided by: Micromedex

It is very important that your doctor check the progress of you or your child at regular visits to make sure that this medicine is working properly. Blood tests are needed to check for unwanted effects. You will also need to have an ECG test (electrocardiogram) to check your heart rhythm.

This medicine may cause unwanted effects on the heart. Check with your doctor right away if you or your child have chest pain, tightness, or discomfort, decreased urine output, dilated neck veins, extreme fatigue, a fast, pounding, or uneven heartbeat or pulse, pain or discomfort in the arms, jaw, back or neck, nausea or vomiting, sweating, swelling of the face, fingers, feet, or lower legs, trouble breathing, or weight gain. These could be symptoms of a serious heart problem.

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.

Check with your doctor right away if you or your child have breathing problems, a cough, a fever, a fast heartbeat, or shortness of breath. These could be symptoms of a serious lung problem.

Do not stop using this medicine suddenly without checking first with your doctor. You may need to slowly decrease your dose before stopping it completely. To do so will cause the platelet level in your blood to increase quickly.

Do not take aspirin or aspirin-containing products since they may also affect your platelets. Do not take any 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.