Dormiol

A 50-per-cent. solution of amylene-chloral, insoluble in cold water, is decomposed by hot water, and is soluble in alcohol. Dose:10 to 50 minims, emulsified with an equal volume of acacia mucilage and made up with water and syrup.

Droserin

Proprietary tablets of the active principle of certain droseras. Used in the treatment of whooping-cough. Issued in two strengths.

Duboisine Sulphate

The salt of an alkaloid obtained from the leaves of Duboisia myoporoides. Soluble in water. It resembles hyoscine in action. Dose:1/120 to 1/30 grain.

Duotal

A trade-name for guaiacol carbonate, B.P.

Dymal (Didymium Salicylate). A fine, odourless powder, used as such, or in a 10-per-cent. ointment with lanoline, for eczema and other skin-affections.

Ehrlich-Hata (' 606 ')

See Salvarsan,

Eigon Preparations are made by the action of iodine and bromine upon albumen, the resulting products being made into galenical preparations (proprietary).

Ektogan is another trade-name for zinc peroxide (dermogen).

Endotin

Said to be pure tuberculin.

Entericin

A preparation of Monsonia biflora. Used as a prophylactic to haemorrhage in enteric fever. Dose: 1/2 to 4 drachms.

Enterinum

The jejunum and duodenum of the sheep in the form of a yellow powder. Given in the treatment of gastric disorders.

Eosote

A liquid and inodorous valerianate of creosote, given in doses of 10 to 30 grains (in capsules) for tuberculous affections.

Ephedrine Hydrochloride C10H15NO.HC1 - prepared from the leaves of Ephedra vulgaris var. helvetica.

A 10-per-cent. solution in water is used as a mydriatic. Dose:1 to 2 drops.

Epicarin is beta-oxynaphthyl-ortho-oxymetatoluic acid, a condensation-product of beta-naphthol and cresolic acid. Used externally in 5 to 10 per cent. ointment, or solution in oil or spirit, for psoriasis, eczema, and scabies.

Epinephrin

A trade-name for the active principle of the suprarenal gland, but differing from suprarenin. Adrenalin, B.P.

Ergoapiol

Trade-name for capsules of apiol and ergot.

Ergotoxine

The alkaloidal active principle of ergot. Dose (of the phosphate) : 1/150 to 1/50 grain.

Ergoval

A physiologically standardised extract (1 in 1) of selected Spanish ergot of rye. Dose: 10 to 30 minims, or 1 dr. in urgent cases.

Ernutine

A trade-name for a solution of ergotoxine phosphate and parahydroxyphenylethylamine (principles to which ergot owes its ecbolic properties). Supplied in hypodermic tabloids of 1/100 grain and in ampoules; also for oral use and in combination with strychnine sulphate or with morphine sulphate.

Erythrol Tetranitrate

A crystalline substance of the nitroglycerin class used in angina pectoris in \ to 1 grain doses made into tablets with cocoa-butter and chocolate. Must be handled with caution (see page 379). Under the name of Erythrol a double iodide of bismuth and cin-chonidine is in use in France for treatment of dyspepsia. It is given in doses of 1/8 to 1/2 grain with 1 to 2 grains of magnesia. Dispensers should be careful in regard to these two totally distinct compounds.