State litigation guide · Oklahoma

Depo-Provera Brain Tumor Lawsuits in Oklahoma

Time limits apply in Oklahoma. Find out if you still qualify.

Free Case Review

Check your eligibility — free

Answer 2-3 quick questions to review your potential case.

People's Justice Research TeamUpdated July 13, 2026Fact-checked

Verified against court and regulatory records · No upfront fees · Your information is never sold

Statute of limitations — Oklahoma

Oklahoma: 2 years from date of injury (12 Okl. St. § 95)

2 years from injury

Oklahoma data

Exposure in Oklahoma

Oklahoma has one of the nation's largest Native American populations — tribal health programs and IHS facilities prescribed Depo-Provera

Large Native American population

Source: Oklahoma Indian Affairs Commission

Each Depo-Provera injection delivers 150mg of MPA — far above natural progesterone levels, creating the conditions for meningioma growth

150mg supraphysiological dose

Source: FDA Depo-Provera labeling

Medical resources

Clinics & Specialists in Oklahoma

Planned Parenthood - Oklahoma City Health Center

FAQ

Frequently Asked Questions

37 QUESTIONS

Studies show that long-term use of Depo-Provera significantly increases the risk of meningioma — a tumor in the tissue surrounding the brain. The risk ranges from 1.5x to 5.6x depending on duration of use and the study population. Meningiomas express progesterone receptors at 60–80% rates, and the synthetic progestin in Depo-Provera (MPA) stimulates tumor growth by binding to these receptors.

Keep reading