CELONTIN vs ZARONTIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. CELONTIN and ZARONTIN 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	ZARONTIN
Rating	New	New
Pharmacy pays	—	~$7.42 /30
Type	RX	RX
Active ingredient	METHSUXIMIDE	ETHOSUXIMIDE
Manufacturer	Parke Davis	Parke Davis
Dosage forms	Capsule	Capsule, Solution
Drug class	Anti-Epileptic Agent	—
Boxed warning	None	None
Treats	Absence Epilepsy	Absence Epilepsy

celontin zarontin

Rating

New

Pharmacy pays

—

~$7.42 /30

Type

Active ingredient

METHSUXIMIDE

ETHOSUXIMIDE

Manufacturer

Parke Davis

Dosage forms

Capsule

Capsule, Solution

Drug class

Anti-Epileptic Agent

—

Boxed warning

None

Treats

Absence Epilepsy

Frequently asked questions

What is the difference between Celontin and Zarontin?

Celontin contains Methsuximide, while Zarontin contains Ethosuximide — 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.