IPECACUANHA

Also known as Ipecac. Native to South America. 

Ipecacuanha contains isoquinoline alkaloids which in small doses have an expectorant action, increasing the secretion of the respiratory tract, thereby reducing the viscosity of the mucous and inducing a productive cough that is less exhausting and less painful. It is used in the treatment of whooping cough and bronchitis.

When used in larger doses it is a well-known emetic.

Found in Potter’s Cough Remover