Guaiadol

Para-iodo-guaiacol.

A colourless and amorphous substance, soluble in alcohol but insoluble in water. Dose:3/4 grain subcutaneously, in equal parts of glycerin and water, for tuberculous affections.

Guaiamar, or guaiacol glycerate, is a white, crystalline powder soluble in water (1 in 20) and alcohol. Dose:5 to 15 grains, in cachet.

Guaiaquin is quinine-guaiacol bisulphonate, a yellowish powder which dissolves in water. Dose: 5 to 10 grains, in cachet, as an anti-periodic and intestinal antiseptic.

Guaiaquinol (Guaiachinol) is quinine dibromoguaiacolate, and occurs in yellow crystals. Soluble in water (4 in 5). Dose:5 grains-or more.

Guaiasanol is the hydrochloride of diethylglycocoll-guaiacol. In white crystals, soluble in water, and given in large doses (30 to 60 grains), compressed.

Guethol

An oily liquid prepared from guaiacol by putting C2H5 into the molecule in place of CH3. For description see AEthacol.

Gynoval

Perles of isoborneol isovalerate (4 grains), a colourless fluid insoluble in water, but easily soluble in alcohol, ether, acetone, benzol, and chloroform. Dose: 4 grains; in nervous insomnia, 8 grains before bedtime.

Haemaformyl

A combination of haematoxylin and formaldehyde (veterinary). Given internally for gastric affections, and applied externally in the treatment of wounds. Haemalbumin. - The trade-name of a brownish powder representing the haematic bodies and salts of the blood. Dose:15 to 30 grains.

Haemival

A blood-iron albuminate, free from fibrin, urea, and all excretory products, and containing 0.25 to 0.30 per cent. of metallic iron in soluble and assimilable form. Does not coagulate when dissolved in hot water. Represents six times its weight of the fresh blood of a healthy bullock. Dose: 8 to 16 grains.

Haemog-allol. - A reddish-brown powder obtained by acting upon haemoglobin with pyrogallol. A haematinic in anaemia. Dose: 4 to 8 grains, in cachet.

Haemoglobin

Prepared from defibrinated blood. Occurs in dark reddish-brown scales, also as powder or extract. Soluble in water. Dose: I to 2 drachms.

Haemol is haemoglobin reduced by the action of zinc dust. It is a brown powder. Dose:2 to 8 grains (with as much sugar) in chlorosis. Various metallic and other compounds of it are made.

Hectine

Sodio-arsenium benzo-sulphopara-aminophenylate. Dissolves readily in water, and solutions can be sterilised. Is less toxic than atoxyl. Dose:15 minims of a 0.l-per-cent. solution. Hectargyre is a combination of hectine and mercury. Dose:20 to 30 drops daily of a 0.1-per-cent. solution.

Hedonal is a white, crystalline powder, which chemically is methylpropylcarbinol-urethane. Almost insoluble in water, soluble in alcohol. Hypnotic. Dose:15 to 30 grains.

Hegonon

Ammonio-silver nitrate albumose (7 per cent. Ag). Readily soluble in water, does not coagulate albumin in solution. Used in O.25-per-cent. injections for gonorrhoea.