Used for Epilepsy

Are you tired of high medication costs? Our service offers unbeatable savings on your methsuximide prescription medication. We provide a range of solutions to help you save up to 100% on your medication costs*. Whether you are insured, uninsured, underinsured, or simply looking to reduce your out-of-pocket expenses, we've got you covered.

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*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.

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methsuximide Uses, Side Effects, Interactions, Warnings & Dosing

What dosages is methsuximide available in?

What dosages is methsuximide available in?

methsuximide is available as a 300 mg oral capsule.

What is methsuximide used for?

What is methsuximide used for?

methsuximide is an antiepileptic and is used to treat absence (petite mal) seizures, when other medications aren’t working well enough.

How does methsuximide work?

How does methsuximide work?

methsuximide is an antiepiletic (anti-seizure) medication. It calms certain nerves and brain activity that are linked to seizures in people who have absence (petit mal) epilepsy (a condition with recurring seizures).

How do I take methsuximide?

How do I take methsuximide?

methsuximide is typically dosed at 300 mg by mouth daily. If necessary, your provider will raise your dose slowly about every week until they find the right dose for you. The maximum dose is 1.2 grams (1,200 mg) total per day.

Is it safe for me to take methsuximide?

Is it safe for me to take methsuximide?

methsuximide is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you.

methsuximide Common Side Effects

methsuximide Common Side Effects

Common side effects of methsuximide:

  • Nausea or vomiting
  • Poor appetite
  • Diarrhea
  • Weight loss
  • Stomach pain
  • Constipation
  • Drowsiness
  • Difficulty with walking, movement, or coordination
  • Dizziness
  • Headache
  • Blurred vision
methsuximide Serious Side Effects

methsuximide Serious Side Effects

Serious side effects are rare with methsuximide. Contact your healthcare provider immediately if you experience any of the following.

  • Low blood cell counts: getting sick more often, feeling weak or short of breath more than usual
Effects of other drugs, drug classes and over-the-counter products on methsuximide

Effects of other drugs, drug classes and over-the-counter products on methsuximide

The following medications may interact with methsuximide:

  • Since methsuximide may interact with concurrently administered antiepileptic drugs, periodic serum level determinations of these drugs may be necessary (eg, methsuximide may increase the plasma concentrations of phenytoin and phenobarbital)
Who makes methsuximide?

Who makes methsuximide?

Various FDA-approved generic manufacturers

Is methsuximide safe in pregnancy?

Is methsuximide safe in pregnancy?

It is not known if methsuximide can harm your unborn baby. Tell your healthcare provider right away if you become pregnant while taking methsuximide. You and your healthcare provider will decide if you should take methsuximide while you are pregnant.
If you become pregnant while taking methsuximide, talk to your healthcare provider about registering with the North American Antiepileptic Drug (NAAED) Pregnancy Registry. The purpose of this registry is to collect information about the safety of antiepileptic drugs during pregnancy. You can enroll in this registry by calling 1‑888‑233‑2334.


What to do if you missed your methsuximide dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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