Product Information
DISOPYRAMIDE 100 MG CAPSULE is a generic product labeled by Mayne Pharma, priced at $0.8437 per EA under NDC 51862009501. Its NADAC has been published 271 times since Feb 13, 2019.
FDA first approved this application on May 31, 1985. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
The Low Outlier badge above means this manufacturer's average price in the DISOPYRAMIDE PHOSPHATE market falls below Q1 − 1.5·IQR across all competing manufacturers. We only apply this flag in markets with four or more competitors. Full definition: glossary → outlier.
Strength
100 mg/1
Manufacturer
Mayne PharmaNDC
51862009501
Classification
Generic
Dosage Form
CAPSULE
Route
ORAL
Effective Date
6/17/2026
Active Ingredients
DISOPYRAMIDE PHOSPHATEApproval Type
Generic (ANDA)
FDA Application
ANDA070173FDA Approved
5/31/1985
TE Code
AB
On Market Since
4/1/2022
Pharmacological Classes
Price Statistics
The NADAC for DISOPYRAMIDE 100 MG CAPSULE has been published 271 times since Feb 13, 2019, and over the history we have for it it has declined 46.6%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.8437 per EA |
|---|---|
| All-time high | $1.7116 (Dec 16, 2020) |
| All-time low | $0.6706 (Nov 20, 2024) |
| 52-week high | $1.1178 |
| 52-week low | $0.6765 |
| Median price | $1.2971 |
| Average price | $1.2108 |
| Largest weekly change | +30.7% (Oct 20, 2021) |
| Weeks tracked | 271 |
| Tracking since | Feb 13, 2019 |
1W
N/A
1M
N/A
3M
N/A
6M
+14.4%
1Y
-24.5%
3Y
-46.2%
5Y
-29.6%
All
-46.6%
Last surveyed Jul 1, 2026 — this NDC no longer appears in the current weekly NADAC file.
Generic Alternatives
The matcher finds 1 manufacturer 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). Switching to the cheapest would cut per-unit acquisition cost by roughly 5% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
Continue researching this drug
Use these direct paths to move from a single NDC into the surrounding market, manufacturer, class, and trend context.
Manufacturer
Mayne Pharma manufacturer profile
See the full portfolio, pricing trend, and other products from this labeler.
Drug market
DISOPYRAMIDE PHOSPHATE market comparison
Compare this molecule across participating manufacturers and inspect the broader market price spread.
Therapeutic class
Antiarrhythmic class view
See how this drug behaves alongside other products in the same FDA pharmacologic class.
Trend hub
Latest market trends
Zoom back out to the weekly mover view and compare this NDC with the rest of the current NADAC release.
Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of DISOPYRAMIDE 100 MG CAPSULE?
The current National Average Drug Acquisition Cost (NADAC) for DISOPYRAMIDE 100 MG CAPSULE, manufactured by Mayne Pharma, is $0.8437 per EA (NDC 51862009501), effective Jul 1, 2026.
How has the price of DISOPYRAMIDE 100 MG CAPSULE changed over time?
Over the history we have for it, the NADAC for DISOPYRAMIDE 100 MG CAPSULE has declined 46.6%. It has been tracked across 271 weekly CMS publications since Feb 13, 2019.
What are the highest and lowest recorded NADAC prices for DISOPYRAMIDE 100 MG CAPSULE?
Since Feb 13, 2019, the NADAC for DISOPYRAMIDE 100 MG CAPSULE has ranged from a low of $0.6706 (Nov 20, 2024) to a high of $1.7116 (Dec 16, 2020), with a median of $1.2971 per EA.
Are there cheaper alternatives to DISOPYRAMIDE 100 MG CAPSULE?
Yes. 1 manufacturer publishes a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, DISOPYRAMIDE 100 MG CAPSULE, is $0.8005 per EA — about 5% below DISOPYRAMIDE 100 MG CAPSULE.
Who manufactures DISOPYRAMIDE 100 MG CAPSULE?
DISOPYRAMIDE 100 MG CAPSULE (NDC 51862009501) is labeled by Mayne Pharma, and CMS classifies it as a generic product.