Levetiracetam is the same medication as Keppra. Keppra is the brand name, and levetiracetam is the generic name for the same anti-seizure drug. They contain the identical active ingredient at the same strength, and generic levetiracetam must meet FDA standards proving it works the same way in your body before it can be sold.
That said, “same medication” doesn’t mean “identical pill.” There are real differences in cost, appearance, and inactive ingredients that are worth understanding, especially for a drug used to control seizures.
Brand Name vs. Generic Name
Every medication has two names. The generic name (levetiracetam) refers to the actual chemical compound. The brand name (Keppra) is the trademarked name given by the company that originally developed it, UCB Pharmaceuticals. When the patent on Keppra expired, other manufacturers were allowed to produce and sell levetiracetam under its generic name.
So if your pharmacy fills a prescription for “levetiracetam,” you’re getting the same active drug that’s in Keppra. If your prescription says “Keppra,” you’re getting the brand-name version of levetiracetam. The drug itself is identical.
What the FDA Requires for Generic Approval
To win FDA approval, a generic must prove bioequivalence to the brand-name drug. This means it has to deliver the same amount of active ingredient into your bloodstream at roughly the same rate. Specifically, the FDA requires that the 90% confidence interval for both peak blood concentration and total drug exposure fall within 80% to 125% of the brand-name product’s values. In practice, most approved generics land much closer to 100% than those outer limits suggest.
What generics don’t have to match are the inactive ingredients, sometimes called excipients. These are the fillers, binders, coatings, and dyes that hold the pill together and give it its shape and color. Keppra tablets, for example, contain ingredients like colloidal silicon dioxide, croscarmellose sodium, and specific dye combinations that give each strength its distinct color (blue for 250 mg, yellow for 500 mg, orange for 750 mg). A generic manufacturer may use entirely different inactive ingredients, which is why your generic levetiracetam pill may look nothing like a Keppra tablet.
Does Switching Affect Seizure Control?
This is the question that matters most to people taking the drug. Seizure medications are sometimes treated with extra caution when it comes to generic substitution because even small fluctuations in drug levels can, in theory, affect seizure control. So what does the evidence actually show?
A study of 148 epilepsy patients who switched from brand-name Keppra to generic levetiracetam found that 73.6% were seizure-free before the switch, and the vast majority (105 of those 109 patients) remained seizure-free afterward. Only 4.7% of the total group experienced an increase in seizure frequency after switching, while 6.8% actually saw their seizure frequency decrease. The researchers concluded that the risk of increased seizures after generic substitution was minimal.
The American Epilepsy Society has weighed in as well, stating that FDA-approved generic anti-seizure medications are safely interchangeable with brand-name versions. The society collaborated with the Epilepsy Foundation and the FDA on prospective studies of generic substitution and found no evidence that switching compromises effectiveness. Their position is clear: generic products should not be described as lower quality or less effective versions of the brand.
The Cost Difference Is Substantial
The price gap between Keppra and generic levetiracetam is one of the largest you’ll see for any common medication. Without insurance, a 30-day supply of brand-name Keppra 500 mg tablets (120 tablets) costs roughly $1,225. The same amount of generic levetiracetam runs between about $36 and $82, depending on the pharmacy and manufacturer. That works out to about $10.21 per tablet for Keppra versus $0.07 to $0.16 per tablet for the generic.
With insurance, your copay may be similar regardless of which version you get. But if you’re paying out of pocket or have a high-deductible plan, the generic saves you well over $1,000 per month.
Available Forms
Both brand and generic versions come in multiple forms. Keppra is available as immediate-release tablets, an oral liquid solution, and an extended-release tablet (sold as Keppra XR). The immediate-release version treats several types of seizures, while the extended-release formulation was approved in 2008 specifically for partial onset seizures.
Generic levetiracetam is available in the same range of formulations, including extended-release tablets. One important caution from the American Epilepsy Society: immediate-release and extended-release versions should never be swapped for each other without your prescriber’s knowledge. They release the drug into your body at different rates, so substituting one for the other could affect your seizure control even though they contain the same active ingredient.
What to Watch for When Switching
If your pharmacy switches you from Keppra to a generic, or from one generic manufacturer to another, the pills will likely look different. They may change in color, shape, or size. This is purely cosmetic and reflects different inactive ingredients, not a different drug. The American Epilepsy Society recommends that pharmacists inform patients when a substitution changes the pill’s appearance, and that pills of different appearances should not be mixed in the same bottle to avoid confusion.
For most people, the switch is seamless. However, the AES does note that heightened caution is warranted for medically complex patients who are at the highest risk for seizures. If you have allergies or sensitivities to specific dyes, preservatives, or other inactive ingredients, it’s worth comparing the excipient list of your new generic with what you’ve been taking. Rare reactions to inactive ingredients are possible even when the active drug is identical.