State litigation guide · Washington

Ozempic / GLP-1 Lawsuits in Washington

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Statute of limitations — Washington

Washington imposes a 3-year statute of limitations for personal injury claims (RCW § 4.16.080). The discovery rule applies to latent pharmaceutical injuries. Washington courts apply the Frye standard for novel scientific evidence (State v. Cauthron), asking whether the methodology is generally accepted in the relevant scientific community. This standard may be more favorable than Daubert for GLP-1 causation testimony.

3 years from date of injury discovery (Frye standard — favorable)

Washington data

Exposure in Washington

Washington population with high GLP-1 prescription rates in the Seattle-Tacoma metro area

7.8 million

Source: U.S. Census Bureau 2024

Washington's Frye standard for expert testimony may be more favorable than Daubert for GLP-1 causation experts

Frye standard

Source: State v. Cauthron, 120 Wn.2d 879

Medical resources

Clinics & Specialists in Washington

UW Medicine — Gastroenterology

FAQ

Frequently Asked Questions

36 QUESTIONS

Over 3,100 lawsuits allege that Novo Nordisk (maker of Ozempic, Wegovy, Rybelsus) and Eli Lilly (maker of Mounjaro, Zepbound) failed to adequately warn patients and doctors about severe side effects including gastroparesis (stomach paralysis), bowel obstruction, pancreatitis, and vision loss (NAION). The cases are consolidated in MDL 3094 in the Eastern District of Pennsylvania.

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