Myambutol (Ethambutol): A First-Line Antituberculosis Agent for Pulmonary and Extrapulmonary TB

Classification: Antimycobacterial agent, first-line antituberculosis therapy Mechanism Class: Bacteriostatic agent inhibiting arabinosyl transferase Route of Administration: Oral Pregnancy Category: C (US FDA) 1. Introduction: What is Myambutol? Its Role in Modern Tuberculosis Management You know, I’ve been treating TB for nearly three decades now, and Myambutol—ethambutol—is one of those drugs that just works, but only if you respect it. It’s not the flashiest agent in the TB arsenal—that’s probably rifampin—but without ethambutol, we’d be losing a lot more patients to drug resistance.