FELBATOL vs OXTELLAR XR

Independent side-by-side comparison.

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

Possible drug interaction. FELBATOL and OXTELLAR 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	OXTELLAR XR
Rating	New	New
Pharmacy pays	~$30.62 /30	~$5.03 /30
Type	RX	RX
Active ingredient	FELBAMATE	OXCARBAZEPINE
Manufacturer	Mylan Speciality LP	Supernus Pharms
Dosage forms	Tablet	Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	Boxed warning	None
Half-life	—	about 2 hours (immediate-release tablets and oral suspension)
Treats	Seizures, Complex Partial Epilepsy, Lennox Gastaut Syndrome	Partial Epilepsies

felbatol oxtellar xr

Rating

New

Pharmacy pays

~$30.62 /30

~$5.03 /30

Type

Active ingredient

FELBAMATE

OXCARBAZEPINE

Manufacturer

Mylan Speciality LP

Supernus Pharms

Dosage forms

Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Half-life

—

about 2 hours (immediate-release tablets and oral suspension)

Treats

Seizures, Complex Partial Epilepsy, Lennox Gastaut Syndrome

Partial Epilepsies

Frequently asked questions

Which is cheaper, Felbatol or Oxtellar XR?

Oxtellar XR costs pharmacies less to acquire — about $5.03 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 Oxtellar XR?

Felbatol contains Felbamate, while Oxtellar XR contains Oxcarbazepine — 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.