# THEELIN
> **NDA003977** · New Drug Application · Sponsor: PARKEDALE · Approved 1941-06-12
## Drug
- **FDA Application Number:** NDA003977
- **Application type:** New Drug Application
- **Brand name:** THEELIN
- **Generic name:** Estrone
- **Active ingredients:** ESTRONE
- **Dosage form:** INJECTABLE
- **Route:** INJECTION
- **Marketing status:** Discontinued
- **Sponsor:** PARKEDALE
- **First approval:** 1941-06-12
## Source
- [Drugs@FDA application overview](https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=003977)
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