The present disclosure relates to choline salts, and crystalline forms thereof, of a compound which isN-((S)-1-(3-(4-chloro-3-(methylsulfonamido)-1-(2,2,2-trifluoroethyl)-1H-indazol-7-yl)-6-(3-methyl-3-(methylsulfonyl)but-1-yn-1-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)-2-((3bS,4aR)-5,5-difluoro-3-(trifluoromethyl)-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-1-yl)acetamide, which is useful in the treatment and prevention of aRetroviridaeviral infection including an infection caused by the HIV virus.本發明係關於化合物之膽鹼鹽及其結晶形式，該化合物為N-((S)-1-(3-(4-氯-3-(甲基磺醯胺基)-1-(2,2,2-三氟乙基)-1H-吲唑-7-基)-6-(3-甲基-3-(甲磺醯基)丁-1-炔-1-基)吡啶-2-基)-2-(3,5-二氟苯基)乙基)-2-((3bS,4aR)-5,5-二氟-3-(三氟甲基)-3b,4,4a,5-四氫-1H-環丙并[3,4]環戊并[1,2-c]吡唑-1-基)乙醯胺，其適用於治療及預防逆轉錄病毒科(Retroviridae)病毒感染，包括由HIV病毒所引起之感染。
