Thiocarlide, also known as Isoxyl, is primarily used in the treatment of tuberculosis. It functions by inhibiting the growth of Mycobacterium tuberculosis, the bacterium responsible for the disease. The compound is particularly effective in cases where the bacteria have developed resistance to other first-line tuberculosis medications. Thiocarlide is often administered in combination with other antitubercular drugs to enhance its efficacy and to reduce the risk of further resistance development. Its application is crucial in regions where multidrug-resistant tuberculosis is prevalent, providing an alternative therapeutic option for patients who may not respond to standard treatment regimens.