Full price comparison · US & Canada
Zarontin Prices — US Pharmacy Cost vs Canada — Save Up to 7% in the US
Cheaper in the US
0%
lower price for Ethosuximide, based on the lowest comparable per-unit prices we found
US · discount card
$36.20
per fill
Lowest listed pharmacy price
US · Cost Plus Drugs
$0.130
per unit
Published price, no card needed
Canada
$0.140
per tablet
Lowest listed pharmacy price
US pharmacy prices — 250mg
| Pharmacy | Discount-card price | Regular cash price | Average retail |
|---|---|---|---|
 CVS Pharmacy | $36.20Lowest | $39.20 | $11.99 |
 Walgreens | $61.15 | $64.15 | $11.99 |
 Kroger Pharmacy | $64.30 | $67.30 | $11.99 |
 Harris Teeter Pharmacy | $64.30 | $67.30 | $11.99 |
 Walmart Neighborhood Market | $66.61 | $69.61 | $11.99 |
 Walmart Pharmacy | $66.61 | $69.61 | $11.99 |
 Food Lion | $77.60 | $77.60 | $11.99 |
 Costco | $98.70 | $98.70 | $11.99 |
 Publix | $137.46 | $140.46 | $11.99 |
"Discount-card price" reflects a standard prescription discount card, not insurance. Prices change often — confirm at the pharmacy before filling.
Canadian pharmacy prices
Initial · 250 mg/5 mL
| Pharmacy | Price / tablet | Pack size | Shipping | Total |
|---|---|---|---|---|
 InhalersOnline.com | $0.140 | — | $0.00 | $207.99Lowest |
 SPFPharmacy.com | $0.140 | — | $9.95 | $210.48 |
| SPFPharmacy.com | $0.180 | — | $9.95 | $90.30 |
| InhalersOnline.com | $0.190 | — | $0.00 | $94.99 |
 CanadianPharmacyAdvantage.com | $0.480 | — | Free | $95.15 |
 CanadaPharmacies.com | $0.530 | — | Free | $105.99 |
Canadian prices are converted to USD at the time of listing and shown before any duties. Shipping and delivery times vary by pharmacy.
Interchangeable forms
Per RxNorm (U.S. National Library of Medicine), these share the same active ingredient and strength as Ethosuximide.
Frequently asked questions
How much does Ethosuximide (Zarontin) cost without insurance?
At the US pharmacies in our data, the lowest listed discount-card price for Ethosuximide is around $36.20. Prices vary by pharmacy, dosage, and pack size, so use the table above to compare specific options near you.
Can I buy Ethosuximide (Zarontin) at a Cost Plus Drugs price?
Yes — Cost Plus Drugs lists Ethosuximide at roughly $0.130 per unit, a published price with no membership card or coupon involved. See the three-price comparison above for how that stacks up against discount-card pharmacies.
How much does Ethosuximide (Zarontin) cost in Canada?
Canadian pharmacy listings in our data show Ethosuximide priced from about $0.140 per tablet (converted to USD), before shipping. Pack size and pharmacy both affect the final total — see the Canada pricing table for specifics.
Why does Ethosuximide (Zarontin) cost more in one country than the other?
Drug pricing is set separately in each country through different negotiation, regulatory, and distribution systems, so the same medication can legitimately carry different price tags on either side of the border. In this case, our data shows the US price is actually the lower of the two once a program like Cost Plus Drugs is factored in — the assumption that Canada is always cheaper doesn't hold for every drug.
How does the price of Ethosuximide with insurance compare to other options?
Your copay for Ethosuximide will depend on your specific insurance plan's formulary and coverage tier. It's often worthwhile to ask your pharmacist to compare your insurance copay against the price available through a pharmacy discount card, as the discount price may sometimes be lower.
Is Ethosuximide covered by Medicare, and what are the costs?
Generic Ethosuximide is typically covered under Medicare Part D and Medicare Advantage prescription drug plans. The brand-name version, Zarontin, is generally not covered. For those without Medicare coverage, manufacturer coupons and pharmacy savings programs can offer reduced monthly prices.
What is the brand-name equivalent for Ethosuximide?
Ethosuximide is the generic name for the medication. Its brand-name counterpart is Zarontin.