Oil Croton.
Oil Juniper.
Parsley: a stimulant diuretic.
Paracentesis Abdominis.
Pilocarpine Hydrochlorate.
Potassium Bicarbonate.
Potassium Bitartrate and Acetate with Compound Jalap Powder: most useful of the hydragogue cathartics.
Potassium Carbonate.
Potassium Iodide: in large doses, sometimes a diuretic in renal dropsy.
Potassium Nitrate: as diuretic.