Dose of rifampicin in RNTCP is-: (A) 600 mg, (B) 450 mg, (C) 300 mg, (D) 100 mg
Answer is B. Under RNTCP Doses of first line antitubercular drugs are :- INH-600mg; rifampicin-450mg; pyrazinamide- 1500mg; ethambutol-1200mg; and streptomycin-750mg.
All drugs are given three times in a week, e.g. 450 mg rifampicin is given three times in a week.