DEPACON vs PRIMIDONE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 20, 2026·How we rate

Possible drug interaction. DEPACON and PRIMIDONE 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	DEPACON	PRIMIDONE
Rating	72/100	70/100
Pharmacy pays	—	~$2.89 /30
Type	RX	RX
Active ingredient	VALPROATE SODIUM	PRIMIDONE
Manufacturer	Abbvie	Amneal
Dosage forms	Injectable	Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	None	None
Half-life	about 9 to 16 hours (the label's mean terminal, or elimination, half-life for valproate monotherapy after oral doses of 250 to 1,000 mg)	—
Treats	—	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

depacon primidone

Rating

72/100

70/100

Pharmacy pays

—

~$2.89 /30

Type

Active ingredient

VALPROATE SODIUM

PRIMIDONE

Manufacturer

Abbvie

Amneal

Dosage forms

Injectable

Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Half-life

about 9 to 16 hours (the label's mean terminal, or elimination, half-life for valproate monotherapy after oral doses of 250 to 1,000 mg)

—

Treats

—

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

Frequently asked questions

Which is better-rated, Depacon or Primidone?

By our independent rating, Depacon scores higher — 3.6 vs 3.5 out of 5 for Primidone. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Depacon and Primidone?

Depacon contains Valproate Sodium, while Primidone contains Primidone — 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.