Action and Uses: Similar to and without advantage over alum.

*Ammonia (NH3).

*Aqua Ammoniae (Aq. Ammon.), Ammonia Water, U.S.P.—NH3 (about 10%) in water.

A liquid with a strong odor and a caustic, soapy taste. Loses NH3 readily. Miscible with water or alcohol.

Uses: Local irritant and antacid, preferably as a liniment. Fugacious indirect circulatory and respiratory stimulant.

Aqua Ammoniae Fortior (Aq. Ammon. Fort.), Stronger Ammonia Water, U.S.P.—NH3 (about 28%) in water.

Loses NH3 very readily. Miscible with water or alcohol.

*Linimentum Ammoniae (Lin. Ammon.), Ammonia Liniment, U.S.P. (Volatile Liniment, Hartshorn Liniment).—Ammonia water (25%) in sesame oil.

Uses: Popularly used as counterirritant.

Lotio Ammoniacalis Camphorata (Lot. Ammon. Camph.), Ammoniated Camphor Wash, N.F. (Aqua Sedativa, N.F. III, Sedative Water, Eau Sédative de Raspail).—Ammonia water (6%) and spirit of camphor (1%), in sodium chloride and water.