| Plant/Drug | Extract | MICs (μg/mL) | |||
| MTB H37Rv | TMC 331 strain | Wild strain (Rif. Resistant) | Wild strain (Rif. Sensitive) | ||
| Z. leprieurii | Aqueous | 750 | 375 | 187.5 | 46.9 |
| Z. leprieurii | Ethanolic | 187.5 | 187.5 | 46.9 | 93.8 |
| Z. leprieurii | Methanolic | 187.5 | 187.5 | 187.5 | 23.4 |
| R. cordifolia | Aqueous | 750 | 1500 | 375 | 750 |
| R. cordifolia | Ethanolic | 750 | 750 | 187.5 | 187.5 |
| R. cordifolia | Methanolic | 187.5 | 187.5 | 187.5 | 46.9 |
| Rifampicin |
| 0.5 | >4.0 | >4.0 | 0.06 |
| Isoniazid |
| 0.25 | 0.13 | 0.13 | 0.03 |