Celontin Coupon & Prices

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Medically reviewed by  Jamie Winn, PharmD

Your monthly Celontin cost savings if eligible

With our assistance, you could access the Celontin patient assistance program and obtain your medication for free. We only charge a flat monthly fee of $49 per medication for our services.

Am I eligible for Celontin patient assistance?

We review each Celontin enrollment application individually to determine if you are eligible. Each assistance program has its own eligibility criteria and the factors considered by most programs are:

  • I am a permanent, legal resident of the United States or Puerto Rico
  • I am uninsured or my insurance doesn’t cover my medication
  • I meet certain income eligibility requirements

How do I apply for the Celontin patient assistance program?

Our process makes it as easy as possible to apply for the Celontin patient assistance program. Begin by completing the enrollment application form on our website. Tell us about any medications that you are taking, including Celontin, your healthcare provider, your insurance plan, and your household income. This information is required by the pharmaceutical manufacturers who will supply the medication, so it is important to make sure this information is accurate and up to date.

We will review the information that you have provided to determine whether you are eligible for patient assistance. If we can pre-qualify you for assistance, NiceRx will handle the full enrollment process on your behalf. If you are approved by the pharmaceutical company, you will typically start receiving your medication in 6 – 8 weeks.

Is NiceRx a Celontin coupon provider?

NiceRx is not a Celontin coupon, Celontin discount card, or Celontin copay card provider. We do not offer Celontin manufacturer coupons, Celontin discounts, rebates, Celontin savings cards, trial offers, or free Celontin samples. We are a service provider that helps eligible individuals access their medication directly from the U.S. pharmaceutical company.

Can NiceRx help me get Celontin cheaper if I have insurance?

NiceRx may be able to help you if:

  • You have a high copay or coinsurance responsibility for Celontin
  • Your insurance company will not pay for your Celontin prescription
  • Your healthcare plan does not cover your medication
  • You do not have insurance

Please apply online to find out if we can help you.

How much does Celontin cost without insurance?

Without insurance, Celontin costs will vary depending on where you buy the medication as prices will vary by retailer. As a guide, Celontin oral capsule 300 mg will cost around $480 for 100 capsules.

How much does Celontin cost with insurance?

The copay for Celontin will depend on the terms of your healthcare plan. Your healthcare provider or pharmacist will be able to calculate your copay with your current insurance. Contact them to find out more.

What is Celontin?

Celontin is an FDA (U.S. Food and Drug Administration) approved medication manufactured by Pfizer, Inc. It is an anti-epileptic medication, also called an anticonvulsant succinimide.

Celontin is used alone or in combination with other medications to treat certain types of seizures (epilepsy), including absence seizures (petit mal seizures) in adults and children.

What doses of Celontin are available?

Celontin is available in capsule form, in the following doses: 300 mg.

Use Celontin regularly to get the most benefit. Read the medication guide provided and follow all directions on your prescription label. Always speak with a healthcare professional for medical advice about any changes to your dose so they can monitor and evaluate your condition.

Celontin active ingredients

The active ingredient of Celontin is methsuximide.

Celontin side effects

The most common side effects of Celontin in clinical trials include:

  • Nausea, vomiting, stomach pain, loss of appetite
  • Diarrhea, constipation
  • Weight loss
  • Abdominal pain
  • Headache
  • Drowsiness
  • Blurred vision, dizziness, loss of balance or coordination

In rare instances, Celontin can cause more serious side effects. These can include:

  • Fever
  • Swollen glands, sore throat
  • Easy bruising, unusual bleeding
  • Feeling very weak or tired
  • Confusion, hallucinations, unusual thoughts or behavior
  • Worsening seizures
  • Lupus-like syndrome (joint pain or swelling with fever, swollen glands, muscle aches, chest pain, vomiting, unusual thoughts or behavior, and patchy skin color)
  • Severe skin reaction – fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling

Your caregiver will assess the benefits of using Celontin against your risk of side effects. Patients are encouraged to report negative side effects or adverse reactions of Celontin to the FDA. Visit, or call 1-800-FDA-1088.

Celontin drug interactions

Celontin can interact with other medications. These include:

  • Sleeping pills
  • Narcotic pain medicine
  • Muscle relaxants
  • Treatments for anxiety, depression, or seizures

This list is not exhaustive and other prescription drugs may interact with Celontin. Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements

Celontin contraindications

You should not use Celontin if you:

  • Are allergic to the active ingredient methsuximide or ethosuximide
  • Are allergic to any of the other ingredients in Celontin
  • Are pregnant or are planning to become pregnant

Talk to your doctor about your medical condition before using Celontin if you:

  • Are taking any of the medications that could interact with Celontin
  • Have lupus
  • Have liver disease
  • Have kidney disease
  • Have a history of depression, mood problems, or suicidal thoughts or actions
  • Are taking phenytoin or phenobarbital
  • Are breastfeeding or are planning to breastfeed – It is not known whether methsuximide passes into breast milk

Celontin generic

Celontin is the trademark brand name for methsuximide manufactured by Pfizer, Inc. A generic version of methsuximide is not available. Generic drugs are generally cheaper than brand-name drugs, but you can still find Celontin savings through NiceRx.

The content on this website is intended for information purposes only. It does not constitute medical advice. The information on this website should not be relied upon and is not a substitute for professional medical advice. You should always speak to your doctor regarding the risks and benefits of any treatment.