aprepitant · Msd · NDA 021549, 022023, 207865

Emend

Earliest generic entry, as listed · earliest of 3 marketed strengths
26 Sep 2027

1 of 3 marketed strengths has no unexpired patent or exclusivity listed.

Blocked by patent: US 8258132.

Listed patents · 1 unexpired

3 Orange Book listing rows for 1 patent. FDA lists a patent once for each use code, and lists its pediatric extension as a separate row.

PatentClaimsExpires
US 8258132drug product, use U-1743, U-1916, U-90126 Sep 2027
US 8258132 listing rowdrug product, use U-1743 · sets the listed date26 Sep 2027
US 8258132 listing rowdrug product, use U-1916 · sets the listed date26 Sep 2027
US 8258132 listing rowdrug product, use U-901 · sets the listed date26 Sep 2027

Exclusivities · 0 unexpired

No unexpired exclusivities listed.

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

  • 24 Oct 2026Enters 12-month window basis: patent · 207865-001
  • 24 Oct 2026Enters 12-month window basis: patent · 021549-002
  • 24 Oct 2026Enters 12-month window basis: patent · 021549-001
  • 24 Oct 2026Enters 12-month window basis: patent · 021549-003

Products covered · 6

NDA · productFormStrengthListed expiry
021549 · 001 · RLDcapsule, oral80MG26 Sep 2027
021549 · 002 · RLDcapsule, oral125MG26 Sep 2027
021549 · 003 · RLD · discontinuedcapsule, oral40MG **Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons**26 Sep 2027
022023 · 001 · RLD · discontinuedpowder, intravenousEQ 115MG BASE/VIAL **Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons**open
022023 · 002 · RLDpowder, intravenousEQ 150MG BASE/VIALopen
207865 · 001 · RLD · discontinuedfor suspension, oral125MG/KIT26 Sep 2027