CELONTIN vs PRIMIDONE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. CELONTIN and PRIMIDONE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	CELONTIN	PRIMIDONE
Rating	New	70/100
Pharmacy pays	—	~$2.89 /30
Type	RX	RX
Active ingredient	METHSUXIMIDE	PRIMIDONE
Manufacturer	Parke Davis	Amneal
Dosage forms	Capsule	Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	None	None
Treats	Absence Epilepsy	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

celontin primidone

Rating

New

70/100

Pharmacy pays

—

~$2.89 /30

Type

Active ingredient

METHSUXIMIDE

PRIMIDONE

Manufacturer

Parke Davis

Amneal

Dosage forms

Capsule

Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Treats

Absence Epilepsy

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

Frequently asked questions

What is the difference between Celontin and Primidone?

Celontin contains Methsuximide, while Primidone contains Primidone — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.