Primidone (Oral Route)

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Proper Use

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.

This medicine may be used with other seizure medicines. Keep using all of your seizure medicines unless your doctor tells you to stop.

Take primidone everyday in regularly spaced doses as ordered by your doctor. This will provide the proper amount of medicine needed to prevent seizures.

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 oral dosage forms (chewable tablets, suspension, or tablets):
  • For seizures:
    • Adults, teenagers, and children 8 years of age or older—At first, 100 or 125 milligrams (mg) once a day at bedtime. Your doctor may increase your dose if needed. However, the dose is usually not more than 2000 mg a day.
    • Children up to 8 years of age—At first, 50 mg once a day at bedtime. Your doctor may increase your dose if needed.

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Do not keep outdated medicine or medicine no longer needed.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.

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