no Federal agency, including the Food and Drug Administration, the National Institutes of Health, and the Centers for Disease Control and Prevention, shall have the authority to regulate the practice of medicine; and
no Federal law, rule, regulation, or policy shall prohibit or restrict the lawful prescribing or disbursing of any drug that is approved by the Food and Drug Administration, or that is available pursuant to section 561B of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 360bbb–0a).