Potassium Cantharidate Merck.
White, amorph. powd., or cryst. mass.—Sol. in water.—Uses: Hypodermically in tuberculosis (Liebreich).—Injection: 3—6 ♏ of 3:5000 solut.
Potassium Carbonate Merck.—U.S.P.—C.P.
Dose: 10—30 grn.
Potassium Chlorate Merck.—U.S.P.—C.P.
Dose: 10—20 grn.—Preparation: Troches (4—1/2 grn.).—Incompatibles: Iron iodide, tartaric acid.—Caution: Do not triturate with sulphur, phosphorus, or organic or combustible compounds. Inflames or explodes with sulphuric acid and any organic powd. Do not administer on empty stomach!
Potassium Citrate Merck.—U.S.P.—Pure.
Sol. in 0.6 part water; slightly in alcohol.—Uses: Rheumatism, lithiasis, fevers.—Dose: 20—25 grn.
Potassium Cyanide Merck.—C.P.
Sol. in 2 parts water; slightly in alcohol.—Sedative, Antispasmodic, Anodyne. Uses: Intern., dyspnea, asthma, phthisis, catarrh, whooping-cough, etc.; extern., 0.2—0.8% aqueous solut. in neuralgia and local pains; 0.6—1.2% aqueous solut. removes silver-nitrate stains from conjunctiva.—Dose: 1/8 grn.—Antidotes: Chlorine water, chlorinated-soda solut., ammonia, cold affusion, 10 grn. iron sulphate with 1 dram tincture of iron in ounce of water.—Incompatibles: Morphine salts, acid syrups, and silver nitrate.