FDA pharmacologic class
N-methyl-D-aspartate Receptor Antagonist
1 medicine is in FDA's class of n-methyl-d-aspartate receptor antagonists: memantine; 1 combination product also contains one. All 2 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is memantine hcl 10 mg tablet at $0.063 per tablet (NADAC).
Which medicines are n-methyl-d-aspartate receptor antagonist?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Memantine | none listed | 38 labelers | $0.063 per tablet 10 mg tablet | No | No current entry | 7 |
| Donepezil and memantine | Namzaric | 5 labelers | $8.44 per unit 28-10 mg | No | A presentation being discontinued | 1 |
Source: FDA Established Pharmacologic Class (NDC Directory, openFDA); CMS NADAC of October 7, 2026; FDA shortages and recalls (FDA files October 8, 2026)
What do pharmacies pay?
Each medicine's most widely listed form, per unit, in the NADAC survey: what pharmacies paid, not what a patient pays; strengths differ, so compare like with like.
Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price