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Generic Fosamax Availability

Last updated on Nov 7, 2023.

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

FOSAMAX (alendronate sodium - solution;oral)

  • Manufacturer: MERCK
    Approval date: September 17, 2003
    Strength(s): EQ 70MG BASE/75ML (discontinued) [RLD]

FOSAMAX (alendronate sodium - tablet;oral)

  • Manufacturer: ORGANON
    Approval date: September 29, 1995
    Strength(s): EQ 10MG BASE (discontinued) [RLD], EQ 40MG BASE (discontinued) [RLD]
  • Manufacturer: ORGANON
    Approval date: April 25, 1997
    Strength(s): EQ 5MG BASE (discontinued) [RLD]
  • Manufacturer: ORGANON
    Approval date: October 20, 2000
    Strength(s): EQ 35MG BASE (discontinued) [RLD], EQ 70MG BASE [RLD] [AB]

Has a generic version of Fosamax been approved?

Yes. The following products are equivalent to Fosamax:

alendronate sodium tablet;oral

  • Manufacturer: APOTEX
    Approval date: August 4, 2008
    Strength(s): EQ 70MG BASE [AB]
  • Manufacturer: AUROBINDO PHARMA
    Approval date: August 4, 2008
    Strength(s): EQ 70MG BASE [AB]
  • Manufacturer: CIPLA
    Approval date: August 4, 2008
    Strength(s): EQ 70MG BASE [AB]
  • Manufacturer: HANGZHOU BINJIANG
    Approval date: September 24, 2009
    Strength(s): EQ 70MG BASE [AB]
  • Manufacturer: SUN PHARM
    Approval date: September 10, 2008
    Strength(s): EQ 70MG BASE [AB]
  • Manufacturer: WATSON LABS
    Approval date: August 4, 2008
    Strength(s): EQ 70MG BASE [AB]

Note: No generic formulation of the following product is available.

  • alendronate sodium - solution;oral

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Fosamax. 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 FAQ.


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 (e.g. identical active ingredients, dosage form, and routes 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 (e.g. AB1, AB2, AB7). 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.

Further information

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