Displaying 4 results of Ethambutol Stable Isotopes Ethambutol stable isotopes are non-radioactive forms of the antibiotic drug ethambutol, which is commonly used to treat tuberculosis. These isotopes are chemically identical to the naturally occurring isotopes of ethambutol but have a different number of neutrons in their atomic nuclei. They are used in research and drug development to track the distribution, metabolism, and excretion of ethambutol within the body. The use of stable isotopes allows for more accurate and precise measurements and can help improve drug efficacy and safety.