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. 2022 Mar 21;11(1):873–884. doi: 10.1080/22221751.2022.2049983

Table 1.

Selective index of rifamycin antibiotics.

Compound CC50 (μM) IC50 (μM) SI
Rifapentine 147.35 0.5259 280.1863472
Rifampicin 164.82 1.032 159.7093023
Rifamycin 31.16 1.833 16.99945445
Rifabutin 30.44 2.9376 10.36220044
Rifaximin 174.12 4.321 40.29622773