CELONTIN vs NEURONTIN

Independent side-by-side comparison.

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

Possible drug interaction. CELONTIN and NEURONTIN 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	NEURONTIN
Rating	New	New
Pharmacy pays	—	~$1.22 /30
Type	RX	RX
Active ingredient	METHSUXIMIDE	GABAPENTIN
Manufacturer	Parke Davis	Parke Davis
Dosage forms	Capsule	Capsule, Solution, Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	None	None
Half-life	—	about 5 to 7 hours in adults with normal kidney function
Treats	Absence Epilepsy	Bipolar Disorder, Partial Epilepsies, Phobic Disorders

celontin neurontin

Rating

New

Pharmacy pays

—

~$1.22 /30

Type

Active ingredient

METHSUXIMIDE

GABAPENTIN

Manufacturer

Parke Davis

Dosage forms

Capsule

Capsule, Solution, Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Half-life

—

about 5 to 7 hours in adults with normal kidney function

Treats

Absence Epilepsy

Bipolar Disorder, Partial Epilepsies, Phobic Disorders

Frequently asked questions

What is the difference between Celontin and Neurontin?

Celontin contains Methsuximide, while Neurontin contains Gabapentin — 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.