Dilantin-125 vs. its authorized generic and generics

How to pay the least

Ask for the cash price

Generic phenytoin

No pharmacy we check posts a price for it.

Ask your pharmacy for the cash price of generic phenytoin.Find pharmacies near you
Ask one or two other pharmacies too. Cash prices for the same generic can differ a lot from store to store.

A regular generic has the same active ingredient as Dilantin-125, and the FDA requires it to work the same way.

Compare every option

Brand nameDilantin-125

Authorized genericphenytoin

Regular genericphenytoin

What you’d pay

Not soldNo longer sold

Cash priceAsk the pharmacyUsually among the lowest

Same as Dilantin-125?

–

Same medicine

Same active ingredientFillers and dyes can differ

Brand nameNot sold

Dilantin-125 itself isn’t sold as a prescription anymore. Its generic versions, if any, are in the other tabs.

See the authorized generic →

Authorized genericThe NDC to ask for

The same medicine as Dilantin-125, without the brand name. Give the pharmacy its NDC to get it.

phenytoin

Sold by

Mylan Pharmaceuticals

NDC to ask for

125 mg/5 mLsuspension
- 59762-0531-211-digit: 59762-0531-02237 mL per bottle

Source: FDA, updated October 30, 2026

What to say at the pharmacy

“Before you fill my Dilantin-125, can you tell me what I’d pay for the brand, for the authorized generic from Mylan Pharmaceuticals (NDC 59762-0531-2), and for a regular generic?”

Paying cash? Ask for each one’s cash price. With insurance, ask what your plan charges for each.

Brand and authorized generic labels

Official labels and ingredient lists from DailyMed (U.S. National Library of Medicine).

Same active and inactive ingredients as Dilantin-125.

Dilantin-125 package label — BrandDilantin-125

Authorized generic package label from Mylan Pharmaceuticals — Authorized genericMylan Pharmaceuticals

See the ingredients

Active: phenytoin 125 mg/5 mL

Inactive, on both labels:

Alcohol
Anhydrous citric acid
Carboxymethylcellulose sodium
FD&C Yellow No. 6
Glycerin
Magnesium aluminum silicate
Polysorbate 40
Sodium benzoate
Sucrose
Vanillin
Water

Regular genericWho makes it

One company sells a generic of Dilantin-125 that the FDA rates a substitute. A pharmacy fills whichever one it stocks. To get a certain maker, ask for it by name; most pharmacies can order it in a day or two.

Sun Pharmaceutical Industries125 mg/5 mL

Has a dye: FD&C Yellow No. 6 · Made by Taro Pharmaceutical Industries

How it looks, what’s in it, NDCs

125 mg/5 mL Orange

Package NDC
Carton of 237 mL 51672-4069-2

Inactive ingredients: carboxymethylcellulose sodium, anhydrous citric acid, FD&C Yellow No. 6, magnesium aluminum silicate, polysorbate 60, water, sodium benzoate, sucrose
FDA label

Package	NDC
Carton of 237 mL	51672-4069-2

Who sells it: FDA and Medicaid records, updated weekly. Each maker’s page, card and program is from its own site.

What it’s used for

Seizures (epilepsy)

What the FDA label says

DILANTIN is indicated for the treatment of tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures.

Source: the FDA label for Dilantin-125 (Viatris Specialty LLC), February 2, 2023. Full label on DailyMed

Good to know

It may look different from Dilantin-125 (color, shape, or markings). That’s normal for an authorized generic.
If your prescription says “dispense as written,” the pharmacy needs your prescriber’s OK to give you the authorized generic.
Cash prices can differ a lot from one pharmacy to the next, so it can pay to ask two. With insurance, what you pay depends on your plan.
If your pharmacy doesn’t stock it, they can often order it within a day or two.
Don’t stop or change a medicine without talking to your pharmacist or prescriber.

Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/dilantin-125/