CELONTIN vs VALPROATE SODIUM

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 18, 2026·How we rate

Possible drug interaction. CELONTIN and VALPROATE SODIUM 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	VALPROATE SODIUM
Rating	New	70/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	METHSUXIMIDE	VALPROATE SODIUM
Manufacturer	Parke Davis	Sagent
Dosage forms	Capsule	Injectable, Solution
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	None	Boxed warning
Half-life	—	about 9 to 16 hours (the label's mean terminal, or elimination, half-life for valproate monotherapy after oral doses of 250 to 1,000 mg)
Treats	Absence Epilepsy	—

celontin valproate sodium

Rating

New

70/100

Pharmacy pays

—

Type

Active ingredient

METHSUXIMIDE

VALPROATE SODIUM

Manufacturer

Parke Davis

Sagent

Dosage forms

Capsule

Injectable, Solution

Drug class

Anti-Epileptic Agent

Boxed warning

None

Boxed warning

Half-life

—

about 9 to 16 hours (the label's mean terminal, or elimination, half-life for valproate monotherapy after oral doses of 250 to 1,000 mg)

Treats

Absence Epilepsy

—

Frequently asked questions

What is the difference between Celontin and Valproate Sodium?

Celontin contains Methsuximide, while Valproate Sodium contains Valproate Sodium — 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.