Generic Prozac Weekly Availability

See also: Generic Prozac

Prozac Weekly is a brand name of fluoxetine, approved by the FDA in the following formulation(s):

PROZAC WEEKLY (fluoxetine hydrochloride - capsule, delayed rel pellets;oral)

  • Manufacturer: LILLY
    Approval date: February 26, 2001
    Strength(s): EQ 90MG BASE [RLD] [AB]

Has a generic version of Prozac Weekly been approved?

A generic version of Prozac Weekly has been approved by the FDA. However, this does not mean that the product will necessarily be commercially available - possibly because of drug patents and/or drug exclusivity. The following products are equivalent to Prozac Weekly and have been approved by the FDA:

fluoxetine hydrochloride capsule, delayed rel pellets;oral

  • Manufacturer: BARR
    Approval date: March 24, 2010
    Strength(s): EQ 90MG BASE [AB]
  • Manufacturer: DR REDDYS LABS LTD
    Approval date: March 22, 2010
    Strength(s): EQ 90MG BASE [AB]

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Prozac Weekly. 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: About generic drugs.

Related Patents

Patents are granted by the U.S. Patent and Trademark Office at any time during a drug's development and may include a wide range of claims.

  • Fluoxetine enteric pellets and methods for their preparation and use
    Patent 5,910,319
    Issued: June 8, 1999
    Inventor(s): Anderson; Neil R. & Harrison; Roger G. & Lynch; Daniel F. & Oren; Peter L.
    Assignee(s): Eli Lilly and Company
    A superior enteric formulation of the antidepressant drug, fluoxetine, is in the form of enteric pellets of which the enteric layer comprises hydroxypropylmethylcellulose acetate succinate.
    Patent expiration dates:
    • May 29, 2017
      ✓ 
      Patent use: METHOD OF TREATING PEOPLE SUFFERING FROM DEPRESSION
    • November 29, 2017
      ✓ 
      Pediatric exclusivity
  • Method for the treatment of CNS disorders
    Patent 5,985,322
    Issued: November 16, 1999
    Inventor(s): Anderson; Neil R. & Harrison; Roger F. & Lynch; Daniel F. & Oren; Peter L.
    Assignee(s): Eli Lilly and Company
    An improved method for the treatment of central nervous system disorders comprises treating patients with an enteric fluoxetine formulation.
    Patent expiration dates:
    • May 29, 2017
      ✓ 
      Patent use: METHOD OF TREATING PEOPLE SUFFERING FROM DEPRESSION WITHOUT AN INCREASE IN NAUSEA
    • November 29, 2017
      ✓ 
      Pediatric exclusivity
  • Fluoxetine enteric pellets and methods for their preparation and use
    Patent RE39030
    Issued: March 21, 2006
    Inventor(s): Anderson; Neil Robert & Harrison; Roger Garrick & Lynch; Daniel Frederick & Oren; Peter Lloyd
    Assignee(s): Eli Lilly and Company
    A superior enteric formulation of the antidepressant drug, fluoxetine, is in the form of enteric pellets of which the enteric layer comprises hydroxypropylmethylcellulose acetate succinate.
    Patent expiration dates:
    • May 29, 2017
      ✓ 
      Patent use: METHOD OF TREATING PEOPLE SUFFERING FROM DEPRESSION WITHOUT AN INCREASE IN NAUSEA
      ✓ 
      Drug product
    • May 29, 2017
      ✓ 
      Patent use: METHOD OF TREATING PEOPLE SUFFERING FROM DEPRESSION
      ✓ 
      Drug product

Glossary

TermDefinition
Drug PatentA 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 ExclusivityExclusivity 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.
RLDA 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.
ABProducts 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.
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