Related entry: Sapo
Soft Soap, Green Soap.
Made by heating Hydroxide of Potassium and Cotton Seed Oil, Water, and Alcohol.
Description.—A soft, yellowish-white to brownish-yellow, unctuous mass, having an alkaline taste and a slight but distinctive odor. Soluble in water. Dose, 5 to 30 minims, well diluted.
Preparation.—Linimentum Saponis Mollis, Liniment of Soft Soap (Tincture of Green Soap). (Soft Soap, Oil of Lavender, Alcohol.)
Action and Therapy.—External. Soft soap is detergent and more irritating than hard soap, being more alkaline and containing some free caustic potash. It may be used in the preparation of enemas for the removal of seat worms and to cause an evacuation of feces. Owing to its softening and cleansing properties it is employed to remove dirt, crusts and scales, epithelia, etc., in the treatment of skin diseases. Soap liniment is a good vehicle for the application of other medicines to sprains, stiffened joints, and contusions and other swellings.
Internal. A solution of soft soap may be administered freely in poisoning by the mineral acids, and in smaller amounts (5 to 30 minims, well diluted) in acidity of the stomach.
The Eclectic Materia Medica, Pharmacology and Therapeutics, 1922, was written by Harvey Wickes Felter, M.D.