The Food and Drug Administration (FDA or the Agency) is announcing the availability of a guidance for industry entitled “Compounding and Repackaging of Radiopharmaceuticals by State-Licensed Nuclear Pharmacies, Federal Facilities, and Certain Other Entities.” This guidance sets forth FDA's policy regarding compounding and repackaging of radiopharmaceuticals for human use by State-licensed nuclear pharmacies, Federal facilities, and other entities that hold a radioactive materials (RAM) license for medical use issued by the Nuclear Regulatory Commission (NRC) or by an Agreement State. Because such radiopharmaceuticals are not eligible for exemptions from provisions of the Federal Food, Drug, and Cosmetic Act (FD&C Act) related to the production of drugs, FDA is issuing this guidance to describe the conditions under which it generally does not intend to take action for violations of certain provisions of the FD&C Act when these entities compound or repackage radiopharmaceuticals.