Used in the treatment of tuberculosis as part of combination therapy. It works by inhibiting the synthesis of the bacterial cell wall, specifically targeting mycobacteria. Ethambutol 2HCl is effective against actively growing organisms and is commonly used during the initial phase of treatment to prevent the development of drug resistance. It is typically administered orally and is well absorbed, making it suitable for long-term regimens. Due to its specific action, it helps reduce the spread of infection and supports the eradication of the bacteria when used with other anti-TB drugs.