Figure 2From: Tetrandrine reverses drug resistance in isoniazid and ethambutol dual drug-resistant Mycobacterium tuberculosis clinical isolatesVerapamil reversed drug resistance in IEDR clinical isolates. Bacteria were incubated with 5 μg/ml verapamil for 24 hours before anti-tubercular drugs were added. Shown was one strain displaying reversal of the drug resistance to both INH and EMB.Back to article page