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Milontin (Phensuximide) is a medication used to treat Absence Epilepsy.

Phensuximide · by Parke Davis

Not yet rated· sourced from the FDA label
Rated against independent regulatory sources·Last updated June 7, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass

Key facts

Active ingredient
Phensuximide
Form
Capsule
Strength
Phensuximide 500MG
Type
Prescription (Rx)
Brand or generic
Brand-name
Manufacturer
Parke Davis
FDA application
NDA008855
Availability
Discontinued (per FDA)

May treat (source: NIH RxClass)

Dosage forms

Capsule

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

Ask for the generic

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Request a 90-day supply

Bulk fills usually lower the per-dose price vs monthly refills.

Use copay cards

Manufacturer copay cards & patient-assistance programs — especially for brand drugs.

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Frequently asked questions

What does Milontin treat?
Milontin (Phensuximide) may be used to treat absence epilepsy, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
Is there a coupon or discount for Milontin?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Milontin. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Milontin?
Milontin is marketed by Parke Davis. You can see Parke Davis's full profile, rating, and other products on pharmaranks.
Is Milontin a brand-name or generic drug?
Milontin is a brand-name product with the active ingredient Phensuximide.
Is Milontin available over the counter?
No. Milontin is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
What forms does Milontin come in?
Milontin is currently marketed as capsule, per the FDA's National Drug Code Directory.
Is Milontin FDA-registered?
Milontin is on record with the U.S. FDA under application number NDA008855. You can verify this on its official FDA label.

Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

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