[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=N][N][Branch1][Branch1][C][=N][Ring1][Branch1][C][=N][C][=C][Branch2][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Branch2][Ring2][Ring1][C][=C][Ring1][Branch1][C][=Branch1][C][=O][C][=Branch1][C][=O][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O][O][O][C]"}, {"from": "gpt", "value": "The molecule is a prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of HIV infection in treatment-experienced adults who meet certain requirements, as determined by a health care provider. Fostemsavir is always used in combination with other HIV medicines."}]