What is the generic of Dilantin?
The generic of Dilantin is Phenytoin. As of August 2026, the lowest verified cash price for Phenytoin 100 mg is $5.00 at Amazon Pharmacy RxPass, based on 6 verified US pharmacy quotes, every price below is a real quote we verified, not an estimate.
| Pharmacy / source | Type | Verified cash price |
|---|---|---|
| Amazon Pharmacy RxPass | program | $5.00 |
| Mark Cuban Cost Plus | pharmacy | $11.31 |
| BetterBuy Rx | coupon | $20.55 |
| Honeybee Health | pharmacy | $23.00 |
| PlanetDrugsDirect | pharmacy | $43.99 |
| RxConnected.com | pharmacy | $64.00 |
Last verified Aug 24, 2026. Cash prices only, from verified public retail and mail-order sources, no insurance copays, no estimates, no extrapolation across strengths or quantities. Prices change; confirm at the pharmacy counter. See our methodology.
Common questions
- What is the generic of Dilantin?
- The generic of Dilantin is Phenytoin. It contains the same active ingredient and is the version that drives the low cash prices below.
- How much does generic Dilantin (Phenytoin) cost without insurance?
- The lowest verified cash price we currently have for Phenytoin 100 mg is $5.00 at Amazon Pharmacy RxPass, from 6 verified US pharmacy quotes. Prices change; confirm at the pharmacy before you buy.
- Is generic Phenytoin as effective as Dilantin?
- Generic Phenytoin must meet the same FDA standards for active ingredient, strength, and quality as Dilantin. Ask your pharmacist if you have questions about switching.