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MOTPOLY XR vs VIMPAT

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Rating

New
70/100

Pharmacy pays

$0.17 /mL
$0.17 /mL

Type

RX
RX

Active ingredient

LACOSAMIDE
LACOSAMIDE

Manufacturer

Dosage forms

Capsule, extended release
Injectable, Solution, Tablet

Drug class

Boxed warning

None
None

Treats

Partial Epilepsies, Tonic-Clonic Epilepsy, Lennox Gastaut Syndrome
Partial Epilepsies, Tonic-Clonic Epilepsy, Lennox Gastaut Syndrome

Frequently asked questions

Which is cheaper, Motpoly XR or Vimpat?

Pharmacies pay about the same to acquire either one — roughly $0.17 per ml, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Motpoly XR and Vimpat?

Both Motpoly XR and Vimpat share the active ingredient Lacosamide.

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.