Phenytoin ER Coupons & Prices

Dilantin

Phenytoin ER is a Hydantoins class drug which is made by Sun Pharmaceuticals. The normal retail price for Phenytoin ER is $62.52 per 90, 100mg capsules, but you can pay only $19.35 for 90, 100mg capsules with a SingleCare coupon. Phenytoin ER is a generic medication; Dilantin is the branded version of Phenytoin ER.

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Phenytoin ER coupon at Kroger Pharmacy
$22.35
$ 19.35
$3 off with signupwith signup

Show this free card to your pharmacist.

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Phenytoin ER coupon at Harris Teeter Pharmacy
$22.35
$ 19.35
$3 off with signupwith signup

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Phenytoin ER coupon at Costco Pharmacy
$ 23.98
Phenytoin ER coupon at Food Lion Pharmacy
$ 26.00
Phenytoin ER coupon at CVS Pharmacy
$29.22
$ 26.22
$3 off with signupwith signup
Phenytoin ER coupon at Walgreens Pharmacy
$30.68
$ 27.68
$3 off with signupwith signup
$ 27.91
$48.06
$ 45.06
$3 off with signupwith signup
$48.06
$ 45.06
$3 off with signupwith signup

About SingleCare Pricing

SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.

Any SingleCare bonus savings, including the $3 signup bonus, may only be used once.

Prices updated: 12/05/2025

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About Phenytoin ER

Phenytoin ER is a Hydantoins class drug which is made by Sun Pharmaceuticals. The normal retail price for Phenytoin ER is $62.52 per 90, 100mg capsules, but you can pay only $19.35 for 90, 100mg capsules with a SingleCare coupon. Phenytoin ER is a generic medication; Dilantin is the branded version of Phenytoin ER.

Phenytoin ER Price History & Information

Price History for Phenytoin Sodium Extended (Generic) & Dilantin (Brand)

90 count, capsule, 100mg

Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.

Average 1-Month Prices for Phenytoin Sodium Extended (Generic) & Dilantin (Brand)

90 count, capsule, 100mg
PharmacyDilantin Retail PricePhenytoin Sodium Extended Retail PricePhenytoin Sodium Extended SingleCare Price
CVS Pharmacy$197.10$39.60$31.50
Walmart$188.55$50.40$35.10
Walgreens$182.70$45.08$30.44
Kroger Pharmacy$187.20$50.40$22.50
Albertsons Pharmacy$237.60$51.30$24.30

These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.

About Phenytoin ER

Phenytoin ER is a Hydantoins class drug which is made by Sun Pharmaceuticals. The normal retail price for Phenytoin ER is $62.52 per 90, 100mg capsules, but you can pay only $19.35 for 90, 100mg capsules with a SingleCare coupon. Phenytoin ER is a generic medication; Dilantin is the branded version of Phenytoin ER.

Phenytoin ER FAQs

How much is Phenytoin ER with SingleCare?

Phenytoin ER costs $19.35 for 90, 100mg capsules with a free Phenytoin ER coupon from SingleCare.  You could lower this cost more depending on your prescription information. Use the dropdown menu above to enter your Rx details (i.e., generic/brand, quantity, dosage, form) to see the most accurate prices of Phenytoin ER with SingleCare at a pharmacy near you.

How much does Phenytoin ER cost without insurance?

The typical retail cost of Phenytoin ER without health insurance is $62.52 per 90, 100mg capsules though you can save money using a SingleCare Phenytoin ER coupon to pay just $19.35 for 90, 100mg capsules of Phenytoin ER. Those without an insurance plan can still use SingleCare for free Phenytoin ER offers. By using Phenytoin ER, you generally save money on your medication instead of getting Dilantin - the branded form of Phenytoin ER, which usually costs much more than Phenytoin ER. 

How much does Phenytoin ER cost with insurance?

Every specific insurance formulary has different details and may or may not cover Phenytoin ER. The cost of Phenytoin ER with insurance coverage differs depending on your plan - check with your insurance provider for explicit prescription coverage and payment guidance. If your plan does not include Phenytoin ER, you can use SingleCare to save money on Phenytoin ER at your local drug stores. Also, you can also use SingleCare coupons if you have Medicare or Medicaid. When Medicare or Medicaid doesn’t cover your Phenytoin ER fill, you can use SingleCare instead. Use the SingleCare website or app to compare the lowest price of Phenytoin ER with SingleCare versus your Phenytoin ER cost with insurance or Medicare.

How to use SingleCare for Phenytoin ER

SingleCare coupons are accepted at most major pharmacies and grocery stores, i.e., Walgreens, Kroger, Walmart, CVS, Safeway, and more. Text, email, print, or save your free Phenytoin ER coupon to your mobile wallet and show a pharmacist when you pick up your prescription.

What is the brand name of Phenytoin ER?

Phenytoin ER is the generic form of Dilantin and is significantly cheaper than Dilantin. The SingleCare price of Phenytoin ER is $19.35 per 90, 100mg capsules, which typically is significantly less expensive than the cost for Dilantin but is made up of the same ingredients.

Where are Phenytoin ER coupons from SingleCare accepted?

SingleCare is accepted at most national pharmacies and grocers, including the following:

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