nalmefene hydrochloride · Knoa Pharma · NDA 218590
Zurnai (Autoinjector)
Earliest generic entry, as listed
5 Nov 2039
Blocked by patent: US 11857547, US 11865112.
Listed patents · 2 unexpired
| Patent | Claims | Expires |
|---|---|---|
| US 11857547 | drug product · sets the listed date | 5 Nov 2039 |
| US 11865112 | drug product, use U-3630 · sets the listed date | 5 Nov 2039 |
Exclusivities · 1 unexpired
| NP | new product | 7 Aug 2027 |
Paragraph IV certifications · 0
No Paragraph IV certification listed by FDA for this drug.
The list shows that a generic applicant certified to FDA that a listed patent is invalid or not infringed. It does not show litigation, settlements or launch timing.
Event history
No events yet. The first ingestion only records products entering their 12-month window; changes appear from the next Orange Book update.
Products covered · 1
| NDA · product | Form | Strength | Listed expiry |
|---|---|---|---|
| 218590 · 001 · RLD | solution, intramuscular, subcutaneous | EQ 1.5MG BASE/0.5ML (EQ 1.5MG BASE/0.5ML) | 5 Nov 2039 |