Skip to content
FDA Paragraph IV list

Drybench Patent.

FDA Paragraph IV list: G

The rows of FDA's Paragraph IV certifications list as captured on 17 October 2026 whose group's drug name, as listed, starts with G, grouped by the NDA number the list gives.

FDA capture · review pending. Each row is shown as captured from FDA's list. Spreadsheet day numbers are shown as dates; a cell that cannot be read as one date is shown as written. A row is placed under an NDA only by the number in its RLD/NDA cell; nothing is joined by name. How this page reads the list has not been independently reviewed by a regulatory-affairs reviewer.

Paragraph IV list captured
17 October 2026
Last checked
30 October 2026

Rows as FDA lists them, not a forecast of market entry and not legal, regulatory or investment advice.

FDA's list is not complete and names no ANDA applicant, patent number or litigation. A product not shown here may still have had a Paragraph IV certification submitted; a product shown under an NDA may have more rows among those kept apart.

The list gives the last qualifying patent's expiry without pediatric exclusivity; in the app's Patents view, the Orange Book lists any *PED period as a separate row with its own date. The two dates describe different things. A blank cell is one FDA left blank in its list. Dates are FDA's own; the last qualifying patent expiry is not recomputed from the Orange Book.

Paragraph IV certificationWhat changed, by week

Gabapentin

NDA 020235 · 2 rows · Listed patents and exclusivities · Open in the app

  • Capsules · 100 mg, 300 mg and 400 mg

    RLD/NDA as listed: Neurontin 20235
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank
  • Tablets · 100 mg, 300 mg and 400 mg

    RLD/NDA as listed: Neurontin 20235
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Gabapentin

NDA 020882 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 600 mg and 800 mg

    RLD/NDA as listed: Neurontin 20882
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Gabapentin

NDA 021129 · 1 row · Listed patents and exclusivities · Open in the app

  • Oral Solution · 250 mg/5 mL

    RLD/NDA as listed: Neurontin 21129
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Gabapentin

NDA 022544 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 300 mg and 600 mg

    RLD/NDA as listed: Gralise 22544
    First PIV submission
    31 Oct 2011
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    22 Jan 2024
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    26 Feb 2024

Gabapentin Enacarbil

NDA 022399 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 300 mg and 600 mg

    RLD/NDA as listed: Horizant 22399
    First PIV submission
    29 Apr 2019
    ANDAs
    1
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    10 Jun 2029

Galantamine Hydrobromide

NDA 021169 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 4 mg, 8 mg and 12 mg

    RLD/NDA as listed: Razadyne 21169
    First PIV submission
    28 Feb 2005
    ANDAs
    14
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    28 Aug 2008
    First marketing
    28 Aug 2008
    Last qualifying patent expiry (as listed by FDA)
    6 Jun 2017

Galantamine Hydrobromide

NDA 021615 · 2 rows · Listed patents and exclusivities · Open in the app

  • Extended-release Capsules · 16 mg and 24 mg

    RLD/NDA as listed: Razadyne ER 21615
    First PIV submission
    11 Mar 2006
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    15 Sep 2008
    First marketing
    15 Oct 2008
    Last qualifying patent expiry (as listed by FDA)
    20 Dec 2019
  • Extended-release Capsules · 8 mg

    RLD/NDA as listed: Razadyne ER 21615
    First PIV submission
    2 Mar 2006
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    15 Sep 2008
    First marketing
    15 Oct 2008
    Last qualifying patent expiry (as listed by FDA)
    20 Dec 2019

Ganciclovir Sodium

NDA 020460 · 1 row · Listed patents and exclusivities · Open in the app

  • Capsules · 250 mg and 500 mg

    RLD/NDA as listed: Cytovene 20460
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Ganirelix Acetate

NDA 021057 · 1 row · Listed patents and exclusivities · Open in the app

  • Injection · 250 mcg/0.5 mL, 1 mL PFS

    RLD/NDA as listed: Ganirelix Acetate 21057
    First PIV submission
    30 Mar 2012
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    27 Jan 2020
    First applicant approval
    30 Nov 2018
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    16 Jun 2015

Gatifloxacin

NDA 021493 · 1 row · Listed patents and exclusivities · Open in the app

  • Ophthalmic Solution · 0.3 %

    RLD/NDA as listed: Zymar 21493
    First PIV submission
    19 Jul 2007
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    19 Aug 2011
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    20 Aug 2019

Gatifloxacin

NDA 022548 · 1 row · Listed patents and exclusivities · Open in the app

  • Ophthalmic Solution · 0.5 %

    RLD/NDA as listed: Zymaxid 22548
    First PIV submission
    7 Dec 2010
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    28 Aug 2013
    First marketing
    1 Oct 2013
    Last qualifying patent expiry (as listed by FDA)
    20 Aug 2019

Gemcitabine

NDA 020509 · 2 rows · Listed patents and exclusivities · Open in the app

  • For Injection · 1g/vial

    RLD/NDA as listed: Gemzar 20509
    First PIV submission
    14 Nov 2005
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    25 Jan 2011
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    7 Nov 2012
  • For Injection · 200 mg/vial

    RLD/NDA as listed: Gemzar 20509
    First PIV submission
    1 Nov 2005
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    18 Dec 2008
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    7 Nov 2012

Gemifloxacin Mesylate

NDA 021158 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 320 mg

    RLD/NDA as listed: Factive 21158
    First PIV submission
    4 Mar 2008
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    18 Jun 2019
    First applicant approval
    15 Jun 2015
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    21 Sep 2019

Gilteritinib Fumarate

NDA 211349 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 40 mg

    RLD/NDA as listed: Xospata 211349
    First PIV submission
    28 Nov 2022
    ANDAs
    1
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    1 Jul 2036

Glatiramer Acetate

NDA 020622 · 2 rows · Listed patents and exclusivities · Open in the app

  • Injection · 20 mg/mL, 1mL pre-filled syringe

    RLD/NDA as listed: Copaxone 20622
    First PIV submission
    27 Dec 2007
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    25 Feb 2020
    First applicant approval
    16 Apr 2015
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    24 May 2014
  • Injection · 40 mg/mL, 1 mL pre-filled syringe

    RLD/NDA as listed: Copaxone 20622
    First PIV submission
    26 Feb 2014
    ANDAs
    2
    180-day status
    Deferred
    Decision posted
    25 Feb 2020
    First applicant approval
    3 Oct 2017
    First marketing
    4 Oct 2017
    Last qualifying patent expiry (as listed by FDA)
    19 Aug 2030

Glimepiride and Rosiglitazone Maleate

NDA 021700 · 2 rows · Listed patents and exclusivities · Open in the app

  • Tablets · 1 mg/4 mg 2 mg/4 mg 4 mg/4 mg

    RLD/NDA as listed: Avandaryl 21700
    First PIV submission
    22 Dec 2006
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    15 Jun 2020
    First applicant approval
    1 Apr 2016
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    21 Oct 2015
  • Tablets · 8 mg/2 mg 8 mg/4 mg

    RLD/NDA as listed: Avandaryl 21700
    First PIV submission
    30 May 2008
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    1 Apr 2016
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    19 Oct 2020

Glipizide

NDA 020329 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 2.5 mg, 5 mg and 10 mg

    RLD/NDA as listed: Glucotrol XL 20329
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Glyburide

NDA 020051 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 1.5 mg, 3 mg, 4.5 mg and 6 mg

    RLD/NDA as listed: Glynase 20051
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Glyburide/_x000D_ Metformin Hydrochloride

NDA 021178 · 1 row · Listed patents and exclusivities · Open in the app

  • Tablets · 1.25mg/250 mg 2.5 mg/500 mg 5 mg/500 mg

    RLD/NDA as listed: Glucovance 21178
    First PIV submission
    Pre-MMA
    ANDAs
    blank
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank

Glycerol Phenylbutyrate

NDA 203284 · 1 row · Listed patents and exclusivities · Open in the app

  • Oral Liquid · 1.1 g/mL

    RLD/NDA as listed: Ravicti 203284
    First PIV submission
    19 Nov 2013
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    11 Jan 2022
    First applicant approval
    2 Dec 2021
    First marketing
    17 Oct 2025
    Last qualifying patent expiry (as listed by FDA)
    9 Mar 2032

Glycopyrrolate

NDA 012827 · 2 rows · Listed patents and exclusivities · Open in the app

  • Tablets · 1 mg

    RLD/NDA as listed: Robinul 12827
    First PIV submission
    14 Aug 2009
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    10 Mar 2020
    First applicant approval
    3 Feb 2014
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    24 Apr 2024
  • Tablets · 2 mg

    RLD/NDA as listed: Robinul Forte 12827
    First PIV submission
    12 Oct 2010
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    3 Feb 2014
    First marketing
    21 Dec 2015
    Last qualifying patent expiry (as listed by FDA)
    24 Apr 2024

Glycopyrrolate

NDA 022571 · 1 row · Listed patents and exclusivities · Open in the app

  • Oral Solution · 1 mg/5 mL

    RLD/NDA as listed: Cuvposa 22571
    First PIV submission
    20 Jun 2012
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    24 Aug 2021
    First applicant approval
    9 Aug 2021
    First marketing
    4 Jan 2022
    Last qualifying patent expiry (as listed by FDA)
    20 Aug 2023

Glycopyrronium Tosylate

NDA 210361 · 1 row · Listed patents and exclusivities · Open in the app

  • Topical Cloth · 2.4E-2

    RLD/NDA as listed: Qbrexza 210361
    First PIV submission
    13 Jan 2020
    ANDAs
    1
    180-day status
    Deferred
    Decision posted
    13 Apr 2026
    First applicant approval
    3 Apr 2026
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    28 Feb 2033

Granisetron Hydrochloride

NDA 020239 · 3 rows · Listed patents and exclusivities · Open in the app

  • Injection · 0.1 mg/mL, 1 mL single dose vial

    RLD/NDA as listed: Kytril 20239
    First PIV submission
    8 Mar 2007
    ANDAs
    1
    180-day status
    blank
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    blank
  • Injection · 1 mg/mL, 1 mL vials

    RLD/NDA as listed: Kytril 20239
    First PIV submission
    1 Jun 2004
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    31 Dec 2007
    First marketing
    31 Dec 2007
    Last qualifying patent expiry (as listed by FDA)
    4 May 2019
  • Injection · 1 mg/mL, 4 mL multi-dose vials

    RLD/NDA as listed: Kytril 20239
    First PIV submission
    19 Jul 2004
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    15 Jun 2020
    First applicant approval
    31 Dec 2007
    First marketing
    31 Dec 2007
    Last qualifying patent expiry (as listed by FDA)
    4 May 2019

Granisetron Hydrochloride

NDA 022198 · 1 row · Listed patents and exclusivities · Open in the app

  • Transdermal System · 3.1 mg/24 hrs

    RLD/NDA as listed: Sancuso 22198
    First PIV submission
    9 Oct 2015
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    blank
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    22 Oct 2024

Guaifenesin

NDA 021282 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 600 mg and 1.2 gm

    RLD/NDA as listed: Mucinex 21282
    First PIV submission
    9 Jun 2006
    ANDAs
    1
    180-day status
    Extinguished
    Decision posted
    19 Nov 2019
    First applicant approval
    blank
    First marketing
    blank
    Last qualifying patent expiry (as listed by FDA)
    28 Apr 2020

Guaifenesin and Dextromethorphan

NDA 021620 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 600 mg/30 mg and 1200 mg/60 mg

    RLD/NDA as listed: Mucinex DM 21620
    First PIV submission
    17 Dec 2008
    ANDAs
    1
    180-day status
    Deferred
    Decision posted
    15 Jun 2020
    First applicant approval
    31 Aug 2015
    First marketing
    5 Apr 2016
    Last qualifying patent expiry (as listed by FDA)
    28 Apr 2020

Guaifenesin and Pseudoephedrine Hydrochloride

NDA 021585 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 600 mg/60 mg and 1200 mg/120 mg

    RLD/NDA as listed: Mucinex-D 21585
    First PIV submission
    29 Dec 2008
    ANDAs
    1
    180-day status
    Deferred
    Decision posted
    15 Jun 2020
    First applicant approval
    27 May 2015
    First marketing
    16 Dec 2015
    Last qualifying patent expiry (as listed by FDA)
    28 Apr 2020

Guanfacine Hydrochloride

NDA 022037 · 1 row · Listed patents and exclusivities · Open in the app

  • Extended-release Tablets · 1 mg, 2 mg, 3 mg and 4 mg

    RLD/NDA as listed: Intuniv 22037
    First PIV submission
    29 Dec 2009
    ANDAs
    1
    180-day status
    Eligible
    Decision posted
    29 Jun 2020
    First applicant approval
    5 Oct 2012
    First marketing
    1 Dec 2014
    Last qualifying patent expiry (as listed by FDA)
    4 Jul 2022