Potassium Nitrate Merck.—U.S.P.—C.P.
Saltpeter; Niter.—Sol. in 3.8 parts water.—Dose: 10—60 grn.—Preparation: Paper (fumes inhaled in asthma).
Potassium Nitrite Merck.—C.P.
White, deliquescent sticks.—Sol. in water.—Uses: Asthma, epilepsy, hemicrana.—Dose: 1/4—2 grn. several t. daily.
Potassium Permanganate Merck.—U.S.P.
Sol. in 16 parts water.—Disinfectant, Deodorant, Emmenagogue.—Dose: 1—2 grn., in solut. or pills made with kaolin and petrolatum, or with cacao butter, after meals.—Incompatibles: All oxidizable substances, particularly organic ones, such as glycerin, alcohol, etc.—Remove stains with oxalic, or hydrochloric, acid.
Potassium Phosphate, Dibasic, Merck.—C.P.
Deliquescent, amorph., white powd.—Sol. in water.—Alterative.—Uses: Scrofula, rheumatism, phthisis, etc.—Dose: 10—30 grn.
Potassium Salicylate Merck.
White, slightly deliquescent powd.—Sol. in water, alcohol.—Antirheumatic, Antipyretic, Analgesic.—Uses: Rheumatism, pleurisy, pericarditis, lumbago, muscular pains, etc.—Dose: 6—15 grn.