Assyro AI

Orange Book product · Brand (NDA)

NUZOLVENCE

ZOLIFLODACIN

Brand (NDA)NDA 219491RX ENTASIS THERAP

At a glance

Dec 12, 2025

Approved

Brand (NDA)

Application

Not listed

TE code

6

Listed patents

Key dates

  1. Approval

    FDA approval date of this drug product.

    Dec 12, 2025

    6 mo ago

  2. Today

  3. Patent 9040528 expires

    Listed method-of-use patent (U-4369) expiration.

    Oct 13, 2029

    in 3 yr 4 mo

  4. Patent 8658641 expires

    Listed drug substance patent expiration.

    Jun 20, 2030

    in 4 yr 1 mo

  5. Exclusivity ends · NCE

    New chemical entity exclusivity (5 years)

    Dec 12, 2030

    in 4 yr 7 mo

  6. Patent 8889671 expires

    Listed drug substance patent expiration.

    Jan 21, 2034

    in 7 yr 8 mo

  7. Patent 9187495 expires

    Listed drug substance patent expiration.

    Jan 21, 2034

    in 7 yr 8 mo

  8. Patent 9540394 expires

    Listed method-of-use patent (U-4369) expiration.

    Jan 21, 2034

    in 7 yr 8 mo

  9. Patent 9839641 expires

    Listed method-of-use patent (U-4369) expiration.

    Jan 21, 2034

    in 7 yr 8 mo

  10. Exclusivity ends · GAIN

    Qualified infectious disease product exclusivity (adds 5 years)

    Dec 12, 2035

    in 9 yr 7 mo

Pharmaceutical detail

Active ingredient

ZOLIFLODACIN

Strength

3GM/PACKET

Dosage form

FOR SUSPENSION

Route

ORAL

TE code

Not listed

Application

NDA 219491

Product number

001

Marketing status

RX

Reference listed drug (RLD)

Yes

Reference standard (RS)

Yes

Active-ingredient family

View full family

This is a reference-listed drug (RLD) — the basis for generic (ANDA) applications. Other products sharing this ingredient are listed below.

Marketing exclusivity (2)

  • NCENew chemical entity exclusivity (5 years)

    Dec 12, 2030

    in 4 yr 7 mo

  • GAINQualified infectious disease product exclusivity (adds 5 years)

    Dec 12, 2035

    in 9 yr 7 mo

Listed patents (6)

Patents listed in the FDA Orange Book for this product, with expiration date and patent type.
PatentExpiresInType
9040528Oct 13, 2029in 3 yr 4 mo
U-4369
8658641Jun 20, 2030in 4 yr 1 mo
Substance
8889671Jan 21, 2034in 7 yr 8 mo
SubstanceU-4369
9187495Jan 21, 2034in 7 yr 8 mo
SubstanceU-4369
9540394Jan 21, 2034in 7 yr 8 mo
U-4369
9839641Jan 21, 2034in 7 yr 8 mo
U-4369
Agent CTA Background

Your Next Submission Could Take 6+ Fewer Weeks and Cost $250K Less.