Gallicin

Methyl gallate in greyish-white crystals. Resembles pyrogallol in properties, and is used in the treatment of conjunctivitis by applying to the eye as a powder, preceded by cocaine to produce anaesthesia of the part.

Gallobromol is dibromogallic acid, a light-brown, crystalline powder, soluble I in 10 of water. Introduced for the treatment of epilepsy (dose 10 to 30 grains), but is also used as an antiseptic in gonorrhoea, gleet, cystitis, and eczema.

Gallogen

The trade-name of ellagic acid (C14H10O10). Is the astringent principle of divi-divi, and occurs as a pale yellow, light, tasteless powder, insoluble in water, but soluble in alcohol and in alkali-solutions. Recommended as an astringent in diarrhoea. Dose: For children 4 to 8 grains, for adults 15 grains, in mixture with acacia mucilage and flavouring syrup.

Gastrosan

Trade - name for bismuth disalicylate.

Gelasepsin

Proprietary name for a sterilised solution of gelatin (1 to 2 per cent.) in normal saline solution. Used as injection.

Geoform

A 'condensation-product' of guaiacol and formaldehyde, used as a substitute for guaiacol and in the same doses.

Geosot is guaiacol valerianate, and resembles in chemical and physical properties creosote esters. Used in tuberculosis and as an intestinal disinfectant. Dose:2 to 5 minims, preferably in capsules.

Geotalose

Mucocolloidal creo-sotal. A greyish-green substance soluble in water and used in diarrhoea and vomiting.

Glandulen

A preparation of the bronchial gland of the sheep, put up in tablets (with milk sugar), each representing about a grain of the fresh gland. For tuberculosis.

Glutannol

A combination of vegetable fibrin with tannin. Being insoluble in the gastric juice, is recommended as an intestinal astringent. Dose:5 to 15 grains, in powder, or in mixture with acacia mucilage.

Glutol

Gelatin saturated with formaldehyde and reduced to powder. An antiseptic application for wounds and indolent ulcers.

Glycerophosphates

By the action of anhydrous phosphoric acid upon glycerin, the three hydroxyl groups in the glycerin are replaced by phosphoric anhydride, a compound resulting which combines as an acid with various bases. A few years ago Dr. A. Robin, of Paris, found that the glycerophosphates have tonic properties in the treatment of neurasthenia and other nervous diseases, as well as in chlorosis, sciatica, tic douloureux, phospha-turia, and locomotor ataxia. At first hypodermic injections of the calcium or sodium glycerophosphate were used, but various preparations are now given per os. The calcium, lithium, potassium, and sodium salts are given in doses of 5 to 15 grains, the iron salt 3 to 5 grains, and quinine glycerophosphate in the usual doses of quinine salts : there are a basic and a neutral glycerophosphate, and either may be given in pill. The other glycerophosphates are usually given in cachet, elixir, glycerin, syrup, and wine, the syrup being most popular. The salts of the inorganic bases named are soluble in water.