Skip to Content

Generic Flagyl Availability

Flagyl is a brand name of metronidazole, approved by the FDA in the following formulation(s):

FLAGYL (metronidazole - capsule;oral)

  • Manufacturer: GD SEARLE LLC
    Approval date: May 3, 1995
    Strength(s): 375MG [RLD] [AB]

FLAGYL (metronidazole - tablet;oral)

  • Manufacturer: GD SEARLE LLC
    Approved Prior to Jan 1, 1982
    Strength(s): 250MG [RLD] [AB], 500MG [RLD] [AB]

Has a generic version of Flagyl been approved?

Yes. The following products are equivalent to Flagyl:

metronidazole capsule;oral

  • Manufacturer: ALEMBIC PHARMS LTD
    Approval date: June 23, 2009
    Strength(s): 375MG [AB]
  • Manufacturer: PAR PHARM
    Approval date: January 29, 2004
    Strength(s): 375MG [AB]

metronidazole tablet;oral

  • Manufacturer: ALEMBIC PHARMS LTD
    Approval date: March 13, 2009
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: AUROBINDO PHARMA LTD
    Approval date: May 29, 2015
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: CADILA PHARMS LTD
    Approval date: December 12, 2017
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: FLAMINGO PHARMS
    Approval date: May 16, 2016
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: HERITAGE PHARMS INC
    Approval date: September 23, 2015
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: INNOGENIX
    Approval date: July 16, 1986
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: LUPIN LTD
    Approval date: September 12, 2017
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: ORIT LABS LLC
    Approval date: June 20, 2017
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: PLIVA
    Approval date: December 6, 1984
    Strength(s): 500MG [AB]
  • Manufacturer: STRIDES PHARMA
    Approval date: May 25, 2016
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: STRIDES VIVIMED
    Approval date: January 29, 1985
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: TEVA PHARMS USA
    Approval date: November 6, 1984
    Strength(s): 250MG [AB]
  • Manufacturer: UNICHEM LABS LTD
    Approval date: January 22, 2014
    Strength(s): 250MG [AB], 500MG [AB]
  • Manufacturer: WATSON LABS
    Approval date: December 20, 1984
    Strength(s): 250MG [AB]
  • Manufacturer: WATSON LABS INC
    Approval date: February 8, 1985
    Strength(s): 500MG [AB]
  • Manufacturer: ZYDUS PHARMS USA INC
    Approval date: November 16, 2016
    Strength(s): 250MG [AB], 500MG [AB]

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Flagyl. These medications may be counterfeit and potentially unsafe. If you purchase medications online, be sure you are buying from a reputable and valid online pharmacy. Ask your health care provider for advice if you are unsure about the online purchase of any medication.

See also: Generic Drug FAQs.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.


Term Definition
Drug Patent A drug patent is assigned by the U.S. Patent and Trademark Office and assigns exclusive legal right to the patent holder to protect the proprietary chemical formulation. The patent assigns exclusive legal right to the inventor or patent holder, and may include entities such as the drug brand name, trademark, product dosage form, ingredient formulation, or manufacturing process A patent usually expires 20 years from the date of filing, but can be variable based on many factors, including development of new formulations of the original chemical, and patent infringement litigation.
Drug Exclusivity Exclusivity is the sole marketing rights granted by the FDA to a manufacturer upon the approval of a drug and may run simultaneously with a patent. Exclusivity periods can run from 180 days to seven years depending upon the circumstance of the exclusivity grant.
RLD A Reference Listed Drug (RLD) is an approved drug product to which new generic versions are compared to show that they are bioequivalent. A drug company seeking approval to market a generic equivalent must refer to the Reference Listed Drug in its Abbreviated New Drug Application (ANDA). By designating a single reference listed drug as the standard to which all generic versions must be shown to be bioequivalent, FDA hopes to avoid possible significant variations among generic drugs and their brand name counterpart.
AB Products meeting necessary bioequivalence requirements. Multisource drug products listed under the same heading (i.e., identical active ingredients(s), dosage form, and route(s) of administration) and having the same strength (see Therapeutic Equivalence-Related Terms, Pharmaceutical Equivalents) generally will be coded AB if a study is submitted demonstrating bioequivalence. In certain instances, a number is added to the end of the AB code to make a three character code (i.e., AB1, AB2, AB3, etc.). Three-character codes are assigned only in situations when more than one reference listed drug of the same strength has been designated under the same heading. Two or more reference listed drugs are generally selected only when there are at least two potential reference drug products which are not bioequivalent to each other. If a study is submitted that demonstrates bioequivalence to a specific listed drug product, the generic product will be given the same three-character code as the reference listed drug it was compared against.