Product Information
MEMANTINE HCL ER 21 MG CAPSULE is a generic product labeled by Slate Run Pharmaceuticals LLC, priced at $0.3287 per EA under NDC 70436005604. Its NADAC has been published 229 times since Feb 9, 2022.
Strength
21 mg/1
Manufacturer
Slate Run Pharmaceuticals LLCNDC
70436005604
Classification
Generic
Dosage Form
CAPSULE, EXTENDED RELEASE
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
MEMANTINE HYDROCHLORIDEApproval Type
Generic (ANDA)
FDA Application
ANDA211100On Market Since
11/15/2021
Pharmacological Classes
Price Statistics
The NADAC for MEMANTINE HCL ER 21 MG CAPSULE has been published 229 times since Feb 9, 2022, and over the history we have for it it has declined 68.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.3287 per EA |
|---|---|
| All-time high | $1.4635 (Mar 16, 2022) |
| All-time low | $0.3021 (Dec 17, 2025) |
| 52-week high | $0.4177 |
| 52-week low | $0.3021 |
| Median price | $0.4916 |
| Average price | $0.5816 |
| Largest weekly change | +71.8% (Oct 19, 2022) |
| Weeks tracked | 229 |
| Tracking since | Feb 9, 2022 |
Generic Alternatives
The matcher finds 2 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 2 manufacturers (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 MEMANTINE HCL ER 21 MG CAPSULE?
The current National Average Drug Acquisition Cost (NADAC) for MEMANTINE HCL ER 21 MG CAPSULE, manufactured by Slate Run Pharmaceuticals LLC, is $0.3287 per EA (NDC 70436005604), effective Jun 24, 2026.
How has the price of MEMANTINE HCL ER 21 MG CAPSULE changed over time?
Over the history we have for it, the NADAC for MEMANTINE HCL ER 21 MG CAPSULE has declined 68.1%. It has been tracked across 229 weekly CMS publications since Feb 9, 2022.
What are the highest and lowest recorded NADAC prices for MEMANTINE HCL ER 21 MG CAPSULE?
Since Feb 9, 2022, the NADAC for MEMANTINE HCL ER 21 MG CAPSULE has ranged from a low of $0.3021 (Dec 17, 2025) to a high of $1.4635 (Mar 16, 2022), with a median of $0.4916 per EA.
Are there cheaper alternatives to MEMANTINE HCL ER 21 MG CAPSULE?
2 NADAC-published products share the same active ingredient, strength, and dosage form as MEMANTINE HCL ER 21 MG CAPSULE, but none are currently priced below it.
Who manufactures MEMANTINE HCL ER 21 MG CAPSULE?
MEMANTINE HCL ER 21 MG CAPSULE (NDC 70436005604) is labeled by Slate Run Pharmaceuticals LLC, and CMS classifies it as a generic product.
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