Epilepsy Home > Zarontin Dosage

Your age and weight, other medications you are taking, and existing medical conditions are among the factors that can affect your Zarontin dosage. For children age three to six years old, the recommended starting Zarontin dose is 250 mg once daily. For children age six and older (and for adults), the recommended starting dosage is 250 mg twice daily. If necessary, your healthcare provider may increase your Zarontin dose until your seizures are under control.

Zarontin Dosage: An Introduction

The dose of Zarontin® (ethosuximide) that your healthcare provider recommends will vary, depending on a number of factors, including:
  • Your age and weight
  • Other medications you may be taking
  • Other medical conditions you may have.
As is always the case, do not adjust your Zarontin dose unless your healthcare provider specifically instructs you to do so.
Zarontin Dosage for Epilepsy
The recommended starting Zarontin dose for children age three to six years old is Zarontin 250 mg once daily. For children age six and older (and for adults), the recommended starting dose is Zarontin 250 mg twice daily. Your healthcare provider may increase your Zarontin dose gradually until your seizures are controlled.
Alternatively, your child's healthcare provider may use your child's weight to calculate an appropriate dose (especially if your child weighs more or less than normal).

General Zarontin Dosage Information

Some considerations for people taking Zarontin include the following:
  • Zarontin comes in capsule form and is taken by mouth once or twice daily. Zarontin is also available in a syrup form.
  • Zarontin can be taken with or without food. If Zarontin bothers your stomach, try taking it with food.
  • Zarontin should be taken at the same time(s) each day to maintain an even level of the drug in your blood.
  • For the medication to work properly, it must be taken as prescribed. Zarontin will not work if you stop taking it.
  • If you are unsure about anything related to Zarontin or your Zarontin dosage, talk to your doctor, nurse, or pharmacist. Do not stop taking the drug without discussing it with your healthcare provider (see Zarontin Withdrawal).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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