[{"from": "human", "value": "Please give me some details about this molecule. [C][=Branch1][C][=O][Branch1][C][O-1][P][=Branch1][C][=O][Branch1][C][O-1][O-1].[Na+1].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule is an antiviral prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of cytomegalovirus (CMV) retinitis in individuals with AIDS. Foscarnet sodium is also FDA-approved for the treatment of a certain type of herpes simplex virus (HSV) infection, called acyclovir-resistant mucocutaneousHSV infection, in people with weakened immune systems."}]