Prescription savings
Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Health conditions
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Medication discounts

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Pricing is calculated based on your prescription details.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 300mg | 90 capsules | $400.81 | $118.73 |
Popular offers

Get Methsuximide for as low as $111.73, which is 72% off the average retail price of $398.54 for the most common version, by using a GoodRx coupon.
You can save more on select medications with GoodRx Companion. See which medications are eligible.
GoodRx coupon prices last updated on 11/01/26.