attorney general of texas Ken Paxton sued a Dallas a doctor who allegedly prescribed testosterone to minors who wanted to transition from their biological sex.

The lawsuit alleges that Dr. M. Brett Cooper, an employee of the University of Texas Southwestern Medical Center and who has hospital privileges at Children’s Medical Center Dallas, prescribed testosterone to 15 minor patients.

The biologically female patients were between the ages of 15 and 17, according to the lawsuit.

Texas passed Senate Bill 14 in 2023, which prohibits health care providers from prescribing certain sex-affirmation care treatments for minors, including cross-sex hormones.

The lawsuit also alleges that Cooper falsified medical records, prescriptions and billing records in an attempt to “intentionally conceal illegal conduct.”

Paxton’s office calls Cooper a “mockery who harms the health and safety of Texas children.”

The lawsuit also calls the doctor a “radical gender activist” and includes Cooper’s social media posts and publications showing her opposition to Senate Bill 14.

As of Friday, Cooper X’s account has gone private.

The lawsuit seeks $10,000 in civil penalties for each violation and a temporary injunction. SB 14 also directs the Texas Medical Board to revoke the medical license of anyone who violates the law.

Ken Paxton (Photo by STEFANI REYNOLDS/AFP via Getty Images)

This is the third Texas doctor sued by the Attorney General’s Office for allegedly violating Senate Bill 14.

Paxton previously sued Dr. May Lau of UT Southwestern Medical Center in Dallas and dr. Hector Granados of the Pediatric Endocrinology Associates of El Paso.

“Texas has banned doctors from prescribing these harmful and baseless ‘gender transition’ drugs to children,” Attorney General Paxton said in a statement. “These medical professionals cannot willfully ignore the law and put young people’s health at risk.”