Enviomycin (INN, also called tuberactinomycin N) is an antibiotic drug, isolated from Streptomyces griseoverticillatus var. tuberacticus. It is used in the treatment of tuberculosis. Enviomycin (INN, also called tuberactinomycin N) is an antibiotic drug, isolated from Streptomyces griseoverticillatus var. tuberacticus. It is used in the treatment of tuberculosis.