Prescription Drug Coverage

Topamax (Topiramate) Medicare Coverage

You may be able to find Medicare plan options in your area that cover Topiramate (generic Topamax). Learn more about Topamax and find Medicare Advantage plans in your area that cover other prescription drugs.
Chemical name: Topiramate

Brand name: Topamax

Typical dosage: 50mg

Typical type: Tablet1

Topamax is a medication used to treat seizure disorders and prevent migraines. Topamax is available as a brand name drug or as a generic and comes as an oral capsule and an oral tablet.

Topamax contains the active medication Topiramate. Topamax is used to prevent migraines and is also used to treat seizure disorders, including focal onset or primary generalized tonic-clonic seizures.

Topamax is typically taken once daily.

Common side effects of Topamax include constipation, diarrhea, upset stomach, change in taste, excitability, dizziness, sleepiness, headache, flushing and signs of a common cold.

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Does Medicare cover Topamax or Topiramate?

While some Medicare plans may not cover Topamax, some Medicare Advantage plans and Medicare Part D plans may cover generic Topiramate.

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). Most Medicare Advantage beneficiaries (88 percent) are enrolled in MA-PDs.1

  • Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover Topiramate.

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You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit

Average costs for Topiramate with Medicare drug coverage

Your copay and deductible costs for any prescription drug can vary depending on what coverage stage you’re in and the Medicare drug plan you have.

Deductible stage Typical copay stage
Your deductible is the amount of money you must spend on covered drugs before your Medicare drug coverage starts paying its share of costs.

In the deductible stage, you’re responsible for the full cost of your prescription drugs.

Some Medicare prescription drug plans have a $0 deductible. Medicare drug plans cannot have a deductible more than $480 in 2022.
After you meet your Part D deductible, you enter the initial coverage period.

During this phase (the typical copay stage), you pay a copayment (flat fee) or coinsurance (percentage) for your covered medications.

Additional information

Do not stop taking Topamax suddenly without talking to your doctor. Stopping this medication suddenly can increase your risk of seizures. You will want to slowly stop Topamax over time with the help of your doctor.

Topamax can increase the amount of acid in the blood. This condition is called lactic acidosis. Signs of too much acid in the blood include confusion, rapid breathing, abnormal heartbeat, upset stomach, shortness of breath and fatigue.

Topamax can also increase the risk of infection while you take it. Signs of infection include fever, chills, sore throat, cough or sinus and ear pain.

Contact your doctor if you feel any of the above side effects or if you notice other abnormal adverse effects.



This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.


Written by Hayden Gharibyar, Pharm.D.