Bromhexine is a medication primarily used as a mucolytic agent, which means it helps break down and thin mucus in the airways. This makes it easier to cough up and clear out mucus, providing relief from respiratory conditions such as bronchitis and chronic obstructive pulmonary disease (COPD). It is often available in tablet or syrup form and is typically taken by mouth. Bromhexine works by increasing the production of mucus and altering its viscosity, making it less sticky. This action helps improve breathing and reduces coughing associated with excessive mucus production.