Zarontin

(ethosuximide)

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Controls absence seizures.

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Our bottom line

Zarontin (ethosuximide) is a first choice medicine to treat absence seizures as it has less side effects than similar medicines. However, you can't use it for other types of seizures.

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  • Price before coupon
    $281.59
  • Lowest price with coupon
    $89.31
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Quick facts about Zarontin
  • Drug class: Neuro/psych
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (ethosuximide)

Upsides

  • Zarontin (ethosuximide) is recommended for treating absence seizures in children because its side effects are less severe.
  • If you have other types of seizures, you can take Zarontin (ethosuximide) with your other seizure medicines.
  • Available in generic as both a pill and a liquid form.
  • Approved in children age 3 and older.
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What to expect from Zarontin, on one page

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Downsides

  • Zarontin (ethosuximide) is only recommended for absence or petit mal seizures. It can't be used to treat other types of seizures.
  • Your doctor will have to run blood tests regularly the first few weeks to make sure you're getting enough Zarontin (ethosuximide).
  • Zarontin (ethosuximide) can interact with a lot of medicines. Talk to your doctor to see if changes need to be made in your other medicines.
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What to expect from Zarontin, on one page

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How it works

Zarontin (ethosuximide) is a succinimide. It controls seizures by stopping a signal in your nerves that can start seizures.

Quick facts about Zarontin
  • Drug class: Neuro/psych
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (ethosuximide)

Used for

  • Absence seizure

Dosage forms

  • Pill
  • Liquid
Tried Zarontin? Write a review!

Prices and coupons

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What to expect when you take Zarontin (ethosuximide) for Absence seizures

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  • First few hoursHours
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  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
    First few daysDays
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  • Possible side effects
  • Severe allergic reactions
  • Suicidal thinking and behavior
  • Changes in blood cell counts
  • Liver and kidney damage
  • Lupus
  • Upset stomach
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Side effect rates for Zarontin (ethosuximide)

Risks and Warnings for Zarontin (ethosuximide)

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  • Rarely, people taking Zarontin (ethosuximide) have had changes in their blood cell counts. This can make you more likely to get sick or have a hard time fighting off an illness. Your doctor will do regular blood tests to make sure your blood cell counts are ok. Talk to your doctor right away if you think you're getting sick more often.

Pharmacist Q&A

Zarontin (ethosuximide) questions for

Frequently Asked Questions

This medication treats epilepsy.

Who is this drug for?

This medication treats epilepsy.

Common concerns from people taking Zarontin (ethosuximide)

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Pregnancy

The FDA hasn’t classified this medicine’s effects on unborn babies. Talk with your doctor about this medicine if you’re pregnant or planning on it.

Tip: Always talk with your doctor before you take any medication while pregnant.
FDA pregnancy category for Zarontin
NUnknown
Kidneys and liver
  • Zarontin (ethosuximide) can rarely cause kidney or liver damage. If you already have kidney or liver problems, Zarontin (ethosuximide) might make it worse. Talk to your doctor to see if you should be taking this medicine.