Experiments were carried out in triplicate and results are expressed as means of three replicate experiments. All the crude extracts were dissolved in distilled water. Essential anti-tb drugs were prepared according to manufacturer’s instructions. Tested concentration range for crude extracts: 19.5–10,000 µg/mL; tested concentration range for positive control drugs: INH: 0.025–1.6 µg/mL; RIF: 0.25–16 µg/mL; EMB: 0.25–16 µg/mL. (-): pure compounds tested.