FDA pharmacologic class
Estrogen Receptor Antagonist
3 medicines are in FDA's class of estrogen receptor antagonists: fulvestrant (Faslodex), elacestrant (Orserdu) and imlunestrant (Inluriyo). 1 of the 3 are listed from generic labelers (FDA NDC Directory, October 8, 2026).
Which medicines are estrogen receptor antagonist?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Fulvestrant | Faslodex, Cligavyx | 19 labelers | n/a | No | A presentation being discontinued | 2 |
| Elacestrant | Orserdu | none listed | n/a | No | No current entry | 0 |
| Imlunestrant | Inluriyo | none listed | n/a | No | No current entry | 0 |
Source: FDA Established Pharmacologic Class (NDC Directory, openFDA); CMS NADAC of October 7, 2026; FDA shortages and recalls (FDA files October 8, 2026)