Pepsin: along with nitro-hydrochloric acid.
Podophyllin.
Podophyllum: in chronic diarrhea, with high-colored pale or frothy stools.
Potassium Chlorate: in chronic cases with mucilaginous stools.
Potassium Iodide.
Pulsatilla: in catarrhal.
Quinine.
Resorcin.
Rhubarb: to evacuate intestine.
Rumex Crispus: in morning diarrhea.