FELBATOL vs LAMICTAL XR

Independent side-by-side comparison.

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

Possible drug interaction. FELBATOL and LAMICTAL XR 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	FELBATOL	LAMICTAL XR
Rating	New	New
Pharmacy pays	~$30.62 /30	~$4.39 /30
Type	RX	RX
Active ingredient	FELBAMATE	LAMOTRIGINE
Manufacturer	Mylan Speciality LP	Smithkline Beecham
Dosage forms	Tablet	Tablet, extended release, Kit
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	Boxed warning	None
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	Seizures, Complex Partial Epilepsy, Lennox Gastaut Syndrome	Bipolar Disorder, Partial Epilepsies, Seizures

felbatol lamictal xr

Rating

New

Pharmacy pays

~$30.62 /30

~$4.39 /30

Type

Active ingredient

FELBAMATE

LAMOTRIGINE

Manufacturer

Mylan Speciality LP

Smithkline Beecham

Dosage forms

Tablet

Tablet, extended release, Kit

Drug class

Anti-Epileptic Agent

Boxed warning

None

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

Seizures, Complex Partial Epilepsy, Lennox Gastaut Syndrome

Bipolar Disorder, Partial Epilepsies, Seizures

Frequently asked questions

Which is cheaper, Felbatol or Lamictal XR?

Lamictal XR costs pharmacies less to acquire — about $4.39 vs $30.62 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Felbatol and Lamictal XR?

Felbatol contains Felbamate, while Lamictal XR 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.