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DEPAKENE vs GRALISE

Independent side-by-side comparison.

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

Possible drug interaction. DEPAKENE and GRALISE 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.

Rating

72/100
New

Pharmacy pays

~$1.02 /30
~$1.22 /30

Type

RX
RX

Active ingredient

VALPROIC ACID
GABAPENTIN

Manufacturer

Dosage forms

Syrup, Capsule
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

Alzheimer Disease, Bipolar Disorder, Epilepsy
Bipolar Disorder, Partial Epilepsies, Phobic Disorders

Frequently asked questions

Which is cheaper, Depakene or Gralise?

Depakene costs pharmacies less to acquire — about $1.02 vs $1.22 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 Depakene and Gralise?

Depakene contains Valproic Acid, while Gralise 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.