Proper Use

Drug information provided by: Merative, Micromedex®

Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. When your supply of this medicine is running low, contact your doctor or pharmacist ahead of time. Do not allow yourself to run out of this medicine.

Swallow the extended-release capsule whole. Do not crush, break, or chew it.

If you are taking verapamil, take it 48 hours after or 24 hours before taking this medicine.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For heart rhythm problems:
    • For oral dosage form (capsules):
      • Adults—400 to 800 milligrams (mg) per day given in divided doses. Dose is usually 600 mg per day given in divided doses (150 mg every 6 hours). Your doctor may adjust your dose as needed.
      • Adults weighing less than 50 kilograms (kg)—Dose is usually 400 mg per day given in divided doses (100 mg every 6 hours). Your doctor may adjust your dose as needed.
      • Children—Use and dose must be determined by your doctor.
    • For oral dosage forms (extended-release capsules):
      • Adults—400 to 800 milligrams (mg) per day given in divided doses. Dose is usually 600 milligrams (mg) per day given in divided doses (300 mg every 12 hours). Your doctor may adjust your dose as needed.
      • Adults weighing less than 50 kilograms (kg)—Dose is usually 400 mg per day given in divided doses (200 mg every 12 hours). Your doctor may adjust your dose as needed.
      • Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.