Product Information

ZONISAMIDE 25 MG CAPSULE is a generic product labeled by Viona Pharmaceuticals Inc., priced at $0.0620 per EA under NDC 72578004001. Its NADAC has been published 193 times since Dec 14, 2022.

FDA first approved this application on Oct 16, 2006. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.

ZONISAMIDE 25 MG CAPSULE

Zonisamide
$0.0620per EA

Strength

25 mg/1

NDC

72578004001

Classification

Generic

Dosage Form

CAPSULE

Route

ORAL

Effective Date

8/19/2026

Active Ingredients

ZONISAMIDE

Approval Type

Generic (ANDA)

FDA Application

ANDA077625

FDA Approved

10/16/2006

TE Code

AB

On Market Since

7/4/2022

Pharmacological Classes

Anti-epileptic Agent
Carbonic Anhydrase Inhibitors
Decreased Central Nervous System Disorganized Electrical Activity
P-Glycoprotein Inhibitors
Sulfonamides

Price Statistics

The NADAC for ZONISAMIDE 25 MG CAPSULE has been published 193 times since Dec 14, 2022, and over the history we have for it it has declined 17.0%. The table below summarizes its recorded NADAC range and movement.

Current price$0.0620 per EA
All-time high$0.0841 (Feb 14, 2024)
All-time low$0.0494 (Jul 17, 2024)
52-week high$0.0706
52-week low$0.0572
Median price$0.0723
Average price$0.0698
Largest weekly change+48.9% (Aug 21, 2024)
Weeks tracked193
Tracking sinceDec 14, 2022

Price History

1W

+8.5%

1M

+8.5%

3M

-5.1%

6M

+3.1%

1Y

-12.2%

3Y

-15.7%

5Y

N/A

All

-17.0%

Generic Alternatives

The matcher finds 7 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.

Frequently asked questions

What is the NADAC price of ZONISAMIDE 25 MG CAPSULE?

The current National Average Drug Acquisition Cost (NADAC) for ZONISAMIDE 25 MG CAPSULE, manufactured by Viona Pharmaceuticals Inc., is $0.0620 per EA (NDC 72578004001), effective Aug 19, 2026.

How has the price of ZONISAMIDE 25 MG CAPSULE changed over time?

Over the history we have for it, the NADAC for ZONISAMIDE 25 MG CAPSULE has declined 17.0%. It has been tracked across 193 weekly CMS publications since Dec 14, 2022.

What are the highest and lowest recorded NADAC prices for ZONISAMIDE 25 MG CAPSULE?

Since Dec 14, 2022, the NADAC for ZONISAMIDE 25 MG CAPSULE has ranged from a low of $0.0494 (Jul 17, 2024) to a high of $0.0841 (Feb 14, 2024), with a median of $0.0723 per EA.

Are there cheaper alternatives to ZONISAMIDE 25 MG CAPSULE?

7 manufacturers publish a NADAC-priced product with the same active ingredient and strength as ZONISAMIDE 25 MG CAPSULE in a comparable dosage form, but none are currently priced below it.

Who manufactures ZONISAMIDE 25 MG CAPSULE?

ZONISAMIDE 25 MG CAPSULE (NDC 72578004001) is labeled by Viona Pharmaceuticals Inc., and CMS classifies it as a generic product.