Ethosuximide can cost $200-$580 without insurance. Learn how to save with coupons, discount cards, and patient assistance programs in 2026.
If you're paying out of pocket for Ethosuximide, you already know it's not cheap. The cash price for a 30-day supply of Ethosuximide can range from $200 to over $580 depending on the formulation, dosage, and pharmacy. Brand-name Zarontin is even more expensive.
But here's the good news: with the right tools, you can dramatically reduce what you pay. Generic Ethosuximide can cost as little as $32 per month with a discount card—and there are patient assistance programs that can provide it for free if you qualify.
This guide covers every way to save money on Ethosuximide in 2026.
Let's start with the baseline. Here's what Ethosuximide typically costs at retail price without any insurance or discounts:
These prices vary by pharmacy and region. The average retail price for the most common generic version is around $210.
Prescription discount cards are the fastest way to save on Ethosuximide. These are free to use, don't require insurance, and work at most pharmacies. Here are the best options:
GoodRx offers some of the lowest prices for generic Ethosuximide. With a GoodRx coupon, you can get generic Ethosuximide for as low as $32 per month—that's up to 85% off the retail price. Simply search for Ethosuximide on goodrx.com, compare prices at pharmacies near you, and show the coupon at checkout.
SingleCare offers generic Ethosuximide for around $36 per month. SingleCare coupons are accepted at most major pharmacies including CVS, Walgreens, and Walmart. You can also find Zarontin (brand) coupons, though the savings on the brand version are less dramatic.
Several other discount card programs may offer competitive prices:
Pro tip: Prices vary between pharmacies, even with the same discount card. Always compare prices at 3–4 pharmacies before filling your prescription. Independent pharmacies sometimes offer better prices than chains.
If you're uninsured or underinsured and can't afford Ethosuximide even with discount cards, patient assistance programs (PAPs) may be able to help you get your medication for free or at very low cost.
Pfizer, the manufacturer of brand-name Zarontin, offers two programs through Pfizer RxPathways:
To learn more or apply, call 1-844-989-4366 or visit the Pfizer RxPathways website.
NeedyMeds is a nonprofit database that lists patient assistance programs for thousands of medications, including Ethosuximide. Visit needymeds.org and search for Ethosuximide or Zarontin to find all available programs.
RxAssist is another comprehensive database of patient assistance programs. It can help you find manufacturer programs, state programs, and nonprofit assistance for Ethosuximide.
RxHope helps patients apply for manufacturer patient assistance programs. They can assist with the Pfizer program for Zarontin.
Generic Ethosuximide is therapeutically equivalent to brand-name Zarontin and costs significantly less. The generic capsules are typically the most affordable option. Unless your doctor has a specific reason to prescribe the brand, always ask for the generic.
The capsule form is generally less expensive than the oral solution. If you or your child can swallow capsules, this can save money. The 250 mg capsules typically cost less than the equivalent dose in liquid form.
Mail-order pharmacies often offer lower prices, especially for 90-day supplies. If you have insurance, your plan's mail-order pharmacy may offer Ethosuximide at a lower copay for a 3-month supply. Even without insurance, mail-order pharmacies may have better pricing than retail.
If you have insurance, verify that generic Ethosuximide is on your plan's formulary. Most Medicare and commercial plans cover it as a preferred generic, which means lower copays. If your plan covers it, your out-of-pocket cost may be just $10 to $50 per month.
Ethosuximide capsules should not be split. However, if your doctor prescribes a dose that could be achieved with fewer, larger doses (e.g., 500 mg once daily instead of 250 mg twice daily), you may use fewer capsules per month. Always discuss dosing changes with your doctor first.
Many states offer pharmaceutical assistance programs for residents who can't afford their medications. These programs vary by state and usually have income requirements. Check with your state's health department or visit needymeds.org to find programs in your area.
No one should have to skip their seizure medication because of cost. Between discount cards, patient assistance programs, and smart pharmacy shopping, there are real ways to make Ethosuximide affordable.
Start by checking prices on GoodRx or SingleCare to see the lowest price near you. If you're uninsured or struggling financially, call Pfizer RxPathways at 1-844-989-4366 to see if you qualify for free medication.
And if you're having trouble finding Ethosuximide in stock, use Medfinder to check pharmacy availability near you. For more information about this medication, read our guides on what Ethosuximide is and Ethosuximide side effects.
You focus on staying healthy. We'll handle the rest.
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