Kalmopyrin

Calcium acetyl-salicylate, readily soluble in water. Dose like the acid.

Kamalin

The bitter principle of kamala, in reddish crystals. An anthelmintic.

Kelene is ethyl chloride.

Kephalidon and Kephalosan. Names for amino-acetparaphe-netidin-caffeine hydrobromide, a white powder given in 5-grain doses for headache.

Kharsin

Sodium 3-methyl-4-aminophenylarsonate. Contains As 237 per cent. Soluble in water. Proposed as a remedy for malaria, sleeping-sickness, and syphilis in 1-grain doses hypo-dermically.

Kineurin

Trade - name for quinine glycerophosphate. Dose: 1 to 5 grains.

Kosin (C31h38o10)

The crystalline principle of kousso. Yellow in colour; soluble in alcohol, ether, and chloroform, not in water. Dose: 20 to 30 grains, followed by a dose of castor oil. There is also an amorphous form. Dose:15 to 60 grains.

Kresatin, or metacresol acetic ester, is a colourless oil miscible with oils and liquid paraffin, and used in such media, or alcoholic solution, as a nasal and throat spray.

Kryofin (methoxyacetpheneti-din).- An analgesic and antipyretic powder, sparingly soluble in water. Dose:5 to 15 grains.

Lactalexin

A proprietary preparation of spermin, thymin, thyroidin, and nucleinic acid, recommended for rickets, scrofula, and nervousness of children.

Lactanin, the trade-name of bismuth lacto-tannate, a yellow powder, insoluble in water. Dose:

8 grains thrice daily for diarrhoea.

Lactobacillin - A preparation of the lactic-acid bacillus in the form of tablets.

Lactol is beta-naphthol lactate, an intestinal antiseptic. Dose: For children, 4 to 8 grains; adults, 15 grains, in cachets.

Lactophenin

A homologue of phenacetin, the acetic radicle being .replaced by the lactic. Resembles phenacetin in physical and therapeutic properties, but is not so depressing. Dose:5 to 15 grains.

Lactucin

The bitter principle (CnH1404) of French lactucarium. In white scales, soluble in alcohol, slightly soluble in water. Hypnotic and sedative. Dose: 1 to 5 grains.

Largin, or silver albuminate, is a greyish powder containing 10.5 per cent. of silver, and soluble 1 in 9 of water. Used as an injection (1 grain per ounce) in gonorrhoea, and in ophthalmia (5 per cent.).

Laxoin

A preparation of phenolphthalein.

Lecithin (Ovo), the phosphoric principle of egg-yolk and the brain, is substantially a distearo-glycero-phosphate of choline. Occurs as a yellowish wax, soluble in ether and chloroform, less soluble in alcohol, and insoluble in water. A nerve-tonic. Dose:2 to 5 grains per se in pill, or subcutaneously half as much dissolved in sterilised oil.

Lenicet

A basic aluminium acetate, used as a dusting-powder.

Lenigallol

Triacetate of pyro-gallol. Is a white powder, insoluble in water, milder in action than pyrogallol, and does not stain. The ointment is made with lanoline, 2 to 20 grains per ounce.