Benserazide is commercially provided in an oral combination tablet with Levodopa for treatment for Parkinson’s disease, and has been approved and widely utilized in this combination for more than 40 years[40 ] Three other inducers which were not pursued in animal models included: Ambroxol, a drug with secretolytic and secretomotoric actions that restores respiratory physiological clearance mechanisms in bronchopulmonary diseases, which is used as an inhalant.
Source: wiktionary