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Generic Seroquel XR Availability

See also: Generic Seroquel

Seroquel XR is a brand name of quetiapine, approved by the FDA in the following formulation(s):

SEROQUEL XR (quetiapine fumarate - tablet, extended release;oral)

  • Manufacturer: ASTRAZENECA
    Approval date: May 17, 2007
    Strength(s): EQ 50MG BASE, EQ 200MG BASE [RLD], EQ 300MG BASE, EQ 400MG BASE [AB]
  • Manufacturer: ASTRAZENECA
    Approval date: August 11, 2008
    Strength(s): EQ 150MG BASE

Has a generic version of Seroquel XR been approved?

A generic version of Seroquel XR 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 Seroquel XR and have been approved by the FDA:

quetiapine fumarate tablet, extended release;oral

  • Manufacturer: ACCORD HLTHCARE INC
    Approval date: November 1, 2016
    Strength(s): EQ 400MG BASE [AB]

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Seroquel XR. 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.

  • Pharmaceutical compositions using thiazepine
    Patent 5,948,437
    Issued: September 7, 1999
    Inventor(s): Parikh; Bhavnish Vinod & Timko; Robert Joseph & Addicks; William Joseph
    Assignee(s): Zeneca Limited
    The invention relates to sustained release formulations comprising 11-›4-›2-(2-hydroxyethoxy)ethyl!-1-piperazinyl!dibenzo›b,f! ›1,4!thiazepine or a pharmaceutically acceptable salt thereof, to methods of treating psychotic states and hyperactivity utilizing the sustained release formulations and to a process for preparing the sustained release formulations.
    Patent expiration dates:
    • May 28, 2017
      Drug product
    • May 28, 2017
      Drug product
    • May 28, 2017
      Drug product
    • November 28, 2017
      Pediatric exclusivity


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.