Question

which of the following is an antitubercular agent? a. isoniazid b. cyanocobalamin c. sumatriptan d. hydrochlorothiazide

Explanation:

Isoniazid is a well - known antitubercular agent used to treat tuberculosis. Cyanocobalamin is vitamin B12, used for vitamin B12 deficiency. Sumatriptan is used for migraine treatment. Hydrochlorothiazide is a diuretic. So among the options, Isoniazid is the antitubercular agent.

Answer:

A. Isoniazid