Pfizer, Tris Pharma To Pay Texas $41.5 Million in ADHD Drug Suit

Nov. 19, 2025, 5:56 PM UTC

Pfizer Inc. and Tris Pharma Inc. will pay the state of Texas $41.5 million to settle claims that it allegedly provided adulterated drugs to treat minors for attention-deficit/hyperactivity disorder, Texas Attorney General Ken Paxton (R) announced Wednesday.

The settlement wraps up a two-year-old lawsuit in Texas state court accusing the companies of changing test results for the drug Quillivant XR in order to obtain the benefits of Medicaid reimbursement.

“Under my watch, Big Pharma will not escape justice for lying about the effectiveness of its drugs,” Paxton said in a press release.

Pfizer denied liability and wrongdoing as part of ...

Learn more about Bloomberg Law or Log In to keep reading:

See Breaking News in Context

Bloomberg Law provides trusted coverage of current events enhanced with legal analysis.

Already a subscriber?

Log in to keep reading or access research tools and resources.