"My wife and I experienced it as a miracle drug for coughs and colds. A box cost 8€. Why is ambroxol not available in the US? A…review published by NIH…found it safe and effective. But no drugmaker has…sought FDA approval… Why not? [They] could not make enough money with a generic to justify the expense. It’s obviously crazy to require this laborious review process for a generic that has been widely used in Europe since 1978, but this is how our system works." prospect.org/blogs-and-newslet