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. 2023 Feb;51(2):257–267. doi: 10.1124/dmd.122.001048

TABLE 6.

Rifampin induction parameters

MW (g/mol) 822.94 (PUBCHEM)
indmax
 4’-OH-S 8.4 (Krishna Machavaram, 2017; Yamazaki et al., 2019)
 6-OH-S 3.6 (Krishna Machavaram, 2017)
 7-OH-S 3.6 (Krishna Machavaram, 2017)
 8-OH-S 5.5 (Yamazaki et al., 2019)
 10-OH-S 16.0 (Yamazaki et al., 2019)
 4’-OH-R 8.4 (Krishna Machavaram, 2017; Yamazaki et al., 2019)
 6-OH-R 3.8 (Pelletier et al., 2013)
 7-OH-R 7.8 (Pelletier et al., 2013; Krishna Machavaram, 2017; Yamazaki et al., 2019)
 8-OH-R 5.5 (Yamazaki et al., 2019)
 10-OH-R 16.0 (Yamazaki et al., 2019)
indC50 (mg/L)
 4’-OH-S 0.239 (Krishna Machavaram, 2017; Yamazaki et al., 2019)
 6-OH-S 1.234 (Krishna Machavaram, 2017)
 7-OH-S 1.234 (Krishna Machavaram, 2017)
 8-OH-S 0.370 (Yamazaki et al., 2019)
 10-OH-S 0.263 (Yamazaki et al., 2019)
 4’-OH-R 0.239 (Krishna Machavaram, 2017; Yamazaki et al., 2019)
 6-OH-R 0.181 (Pelletier et al., 2013)
 7-OH-R 0.214 (Pelletier et al., 2013; Krishna Machavaram, 2017; Yamazaki et al., 2019)
 8-OH-R 0.370 (Yamazaki et al., 2019)
 10-OH-R 0.263 (Yamazaki et al., 2019)
Rifampin effects on CLR (multiplication factor)
 S-warfarin 1.30 (Cheng et al., 2022a)
 R-warfarin 1.43 (Cheng et al., 2022a)

indC50, concentration of rifampin producing 50% of maximum induction of a particular metabolic pathway; MW, molecular weight.