What is the generic name for Seroquel (Quetiapine)?

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Generic Name for Seroquel

The generic name for Seroquel is quetiapine fumarate, or simply quetiapine. 1

Brand and Generic Nomenclature

  • Seroquel is the brand name under which quetiapine fumarate is marketed 1, 2
  • The chemical designation is 2-[2-(4-dibenzo [b,f ] 1, 4thiazepin-11-yl-1-piperazinyl)ethoxy]-ethanol fumarate (2:1) (salt), belonging to the dibenzothiazepine derivatives class 1, 3
  • All doses and tablet strengths are expressed as milligrams of quetiapine base, not as fumarate salt 1

Available Formulations

  • Immediate-release formulation: Available as Seroquel in tablet strengths of 25 mg, 50 mg, 100 mg, 200 mg, 300 mg, and 400 mg 1
  • Extended-release formulation: Available as Seroquel XR (quetiapine XR), which allows for once-daily dosing 2

Generic Availability

  • Quetiapine went generic after patent expiration, with Seroquel listed among major medications expected to lose patent protection between 2010-2013 4
  • Generic quetiapine became available following the standard FDA approval process under the Drug Price Competition and Patent Term Restoration Act of 1984 (Hatch-Waxman Act) 4

References

4
Guideline

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Dr.Oracle Medical Advisory Board & Editors, 2025

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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