Three physicians have filed a lawsuit against the U.S. Food and Drug Administration (FDA) this month for the agency’s “crusade” against ivermectin as a treatment for Covid-19. The lawsuit contends the FDA “unlawfully interfered” with the doctors’ ability to practice medicine by directing the public, health professionals, and patients not to use ivermectin.

The Epoch Times reports that Drs. Robert L. Apter, Mary Talley Bowden, and Paul E. Marik filed the lawsuit with the U.S. District Court, Southern District of Texas, Galveston Division. In addition to the FDA, the suit names the U.S. Department of Health and Human Services (HHS), HHS Secretary Xavier Becerra, and Acting FDA Commissioner Robert Califf. The physicians are represented by Boyden, Gray & Associates, a Washington, D.C.-based law firm.

According to the lawsuit, the FDA acted outside of its authority, which is limited to approving drugs and drug labeling.