Pilocarpine Hydrochlorate.

Podophyllum: in catarrhal conditions very useful.

Potassium Bicarbonate.

Potassium Carbonate.

Potassium Chloride.

Potassium Sulphate: as laxative.

Quinine: in malarial cases.

Rhubarb: in children.

Saline Purgatives.

Salol.