CELONTIN vs LAMICTAL CD

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. CELONTIN and LAMICTAL CD 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	LAMICTAL CD
Rating	New	70/100
Pharmacy pays	—	~$4.39 /30
Type	RX	RX
Active ingredient	METHSUXIMIDE	LAMOTRIGINE
Manufacturer	Parke Davis	Glaxosmithkline
Dosage forms	Capsule	Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	None	Boxed warning
Half-life	—	about 25 to 33 hours in healthy adults taking no other medications — the label reports a mean elimination half-life of 32.8 hours after a single dose (individual range 14 to 103 hours) and 25.4 hours with repeat dosing (range 11.6 to 61.6 hours), since lamotrigine induces its own metabolism
Treats	Absence Epilepsy	Bipolar Disorder, Partial Epilepsies, Seizures

celontin lamictal cd

Rating

New

70/100

Pharmacy pays

—

~$4.39 /30

Type

Active ingredient

METHSUXIMIDE

LAMOTRIGINE

Manufacturer

Parke Davis

Glaxosmithkline

Dosage forms

Capsule

Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Boxed warning

Half-life

—

about 25 to 33 hours in healthy adults taking no other medications — the label reports a mean elimination half-life of 32.8 hours after a single dose (individual range 14 to 103 hours) and 25.4 hours with repeat dosing (range 11.6 to 61.6 hours), since lamotrigine induces its own metabolism

Treats

Absence Epilepsy

Bipolar Disorder, Partial Epilepsies, Seizures

Frequently asked questions

What is the difference between Celontin and Lamictal Cd?

Celontin contains Methsuximide, while Lamictal Cd contains Lamotrigine — 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.