FDA drug class
Potassium Channel Blockers list
Every FDA-approved prescription drug the FDA NDC directory tags with the Potassium Channel Blocker [EPC] class, with brand names and DEA schedules.
Source: FDA NDC Directory file dated 2026-10-22. Publisher page
The FDA NDC directory lists 2 single-ingredient drugs in this class: amifampridine, dalfampridine.
Run it in Rivvi
Map Firdapse and your other top fills to their generics
Every strength in RxNorm, with brands that have no generic flagged.
Build the mapFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Potassium Channel Blockers (2)
| Drug | Brand names | Type | NDC listings | DEA schedule |
|---|---|---|---|---|
| Amifampridine | Firdapse | Single ingredient | 1 | Not controlled |
| Dalfampridine | Ampyra | Single ingredient | 11 | Not controlled |
FDA established pharmacologic class: Potassium Channel Blocker [EPC].
Questions
What drugs are Potassium Channel Blockers?
The FDA NDC directory lists 2 single-ingredient drugs in this class: amifampridine, dalfampridine.
Where does this list come from?
From the established pharmacologic class (EPC) field FDA publishes for each listing in the NDC directory. A drug is listed when most of its prescription listings carry the class.