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. 2025 Jul 2;19(1):180. doi: 10.1186/s13065-025-01534-x

Table 3.

Carryover of simnotrelvir, ritonavir and urea

Simnotrelvir Simnotrelvir-D4 Ritonavir Ritonavir-D6 Urea Urea-13C15N2
Area (STD8) 3,575,796.32 3,561,430.22 5,378,379.90 173,121.45 11,700,979.04 400,931.55
Area (BLANK) 55.43 70.74 1913.81 62.71 2880.35 363.82
Carryover Rate (%) 0.0016 0.0020 0.0356 0.0362 0.0246 0.0907