[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][Branch1][#Branch2][O][C@H1][Branch1][Ring2][S][Ring1][Branch1][C][O][N][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][F]"}, {"from": "gpt", "value": "The molecule is a nucleoside reverse transcriptase inhibitor (NRTI) indicated for the treatment of HIV infection in adults or combined with [tenofovir alafenamide] for the prevention of HIV-1 infection in high risk adolescents and adults. Emtricitabine is a cytidine analogue. The drug works by inhibiting HIV reverse transcriptase, preventing transcription of HIV RNA to DNA.  Emtricitabine was granted FDA approval on 2 July 2003."}]