Ambroxol is a drug used to treat respiratory diseases such as asthma and bronchitis. Ambroxol stable isotopes are isotopes of ambroxol that have a stable atomic structure and do not decay over time. These isotopes are useful in research and development of new drugs, as they allow for precise measurement and analysis of the molecule's properties. The stable isotopes of ambroxol are also used in medical diagnostics and imaging techniques.