White powd.—Sol. in water.—Antitubercular, like cinnamic acid.—Injection (intravenous or parenchymatous): 1/3—1 grn. in 5% solut., twice a week.

Sodium Dithio-salicylate, Beta-, Merck.

Grayish-white, hygroscopic powd.—Sol. in water.—Antineuralgic, Antirheumatic.—Uses: Intern., sciatica, gonorrheal rheumatism, etc.—Dose: 2—10 grn.

Sodium Ethylate, Liquid, Merck.

Colorl. syrupy liq.; turns brown on keeping.—Escharotic.—Uses: Warts, nævi, etc.—Applied with glass rod, pure. Chloroform arrests caustic action.

Sodium Ethylate, Dry, Merck.

White or brownish, hygroscopic powd.—Action and Uses: As above.—Applied in solut. 1:3 absolute alcohol.

Sodium Fluoride Merck.—Pure.

Clear cryst.—Sol. in water.—Antispasmodic, Antiperiodic, Antiseptic.—Uses: Intern., epilepsy, malaria, tuberculosis; extern., antiseptic dressing for wounds and bruises, as mouth-wash, in vaginitis, etc. Does not attack nickel-plated instruments.—Dose: 1/12—1/6 grn., in solut. with sodium bicarbonate.—Applied: Wounds, in 1/20—1/10% solut.; mouth-wash, etc., in 1/2—1% solut.

Sodium Formate Merck.