This document discusses various synthetic antitubercular and antileprosy agents. It outlines five main synthetic antitubercular agents - rifampicin, rifabutin, cycloserine, streptomycin, and capromycine sulphate. It also mentions three main antileprosy agents - clofazimine, dapsone, and rifamycin. The document provides a classification of antileprosy agents and separates sections on rifampicin, rifabutin, cycloserine, clofazimine, and dapsone.