P. nigrum extracts/compounds | IC50 (µg・ml−1) promastigotes (Mean ± SE) | IC50 (µg・ml−1) amastigotes (Mean ± SE) | CC50 (µg・ml−1) macrophages (Mean ± SE) | SI |
PNH | 31.6 ± 0.13 | 14.63 ± 1.58 | 379.7 ± 8.19 | 25.95 |
PNE | 37.83 ± 2.58 | 18.33 ± 0.82 | 200 ± 1.69 | 10.91 |
PNA | >500 | >500 | - | - |
Piperine | 108.66 ± 1.96 | 41.33 ± 1.44 | >500 | - |
Pentamidine | 1.09 ± 0.055 | 0.84 ± 0.16 | 45.2 ± 2.86 | 53.80 |