Hoemogallol is obtained by oxidizing the haemoglobin of the blood by the action of pyrogallol (a derivative of gallic acid). It is a reddish brown powder, easily assimilated. It is insoluble in water, and is given in tablets or in wine.

Average dose, gr. iii.-0.2 Gm.

Hoemoglobin is the red coloring matter of the blood corpuscles. It forms a red powder, soluble in water.

Average dose, gr. ii.-0.125 Gm.

Helmitol is a compound of a preparation of citric acid and urotropin in the form of odorless and colorless crystals with a slightly acid taste, acting as diuretic and antiseptic. Average dose, gr. viii.-0.5 Gm.


Obtained from haemoglobin by reduction with zinc dust. Contains 0.2 % of iron. A number of combinations of hemol with other metals are in use, possessing the tonic properties of the former with the medicinal properties of the latter. Arsen-hemol contains 1 % of arsenous acid. Iodo-hemol contains 16.6 % of iodine. Zinc hemol contains 1 % of zinc.

Holocain is obtained by uniting phenacetin and para-phenetidin in the form of insoluble crystals of bitter taste, and used as a local anaesthetic in ophthalmology in solution of 1 %.

Iodoformogen is an odorless compound of albumin and iodoform; It is dry, impalpable, does not form lumps, and is three times lighter than iodoform, in place of which it is used.

Iodothyrin is obtained from the thyroid gland of the sheep in the form of an amorphous brown powder, as a milk-sugar trituration; used as an alterative in an average dose of gr. xv.-I Gm. Contains 3% iodine.

Jequirity is the seed of Abrus precatorius, the active principle of which is abrin or jequiritin, which is used as an irritant in chronic conjunctivitis. It is extremely poisonous.

Kola contains the alkaloids theobromine and caffeine, and a principle known as kolanin. It is used internally as an astringent. It lessens tissue waste, is a tonic stimulant to the circulation, and aids the alcoholic subject in resisting the craving for liquor.

Lecithin is a phosphate obtained from the yolks of eggs, and is used in nervous affections. Average dose, gr. iii.-0.2 Gm.

Listerine is an American specialty used as a lotion or mouth wash, and contains approximately boric acid 25, benzoic acid 1, thymol 1, eucalyptol 1, oil of gaultheria 2, oil of peppermint 1/2, tincture of baptista 15, alcohol (90 %) 325, and water to make 1000.

Litmus Paper for the testing of urine, etc., is colored blue by impregnation with a solution of litmus, which is a dye prepared from lichens with an alkali. Dipped into an acid the paper turns red, and the color is restored by an alkali.

Losophan is a preparation containing about 78 % of iodine. It is used in powder, ointment, and solution, in from 10-20 %, in the treatment of skin diseases.

Lysoform is a combination of lysol and formaldehyde used in solution of 5 to 10 % as a disinfectant and antiseptic.

Lysol is a derivative of carbolic acid, containing 50 % of cresols. It forms a soapy liquid with water, and combines with alcohol and glycerin. It is used as a disinfectant for the skin, in 1 % solution, and for wounds and abscesses in from 1-3 %.

Magma Bismuthi, Milk of Bismuth (official), contains bismuth subnitrate, nitric acid, and ammonium carbonate. Average dose, ʒ i.-4 mils.

Magma Magnesioe, Milk of Magnesia (official), contains magnesium carbonate and sodium hydroxide.

Average dose, ʒ iiss.-10 mils.

Marrubin, or the glycerine extract of the red bone marrow, may be used. Average dose, ʒ i.-4 mils.

This is given as a nutrient substitute for cod-liver oil.

Mel Rosoe, Honey of Rose, is made of fluidextract of rose and clarified honey. Average dose, ʒ i.-4 mils. Official.

Methacetin is a compound analogous to phenacetin. It is tasteless and colorless, soluble in alcohol, glycerin, and oil; also slightly soluble in water. It has been used as an antiseptic, analgesic, and antipyretic. It is rather depressing, and has sometimes caused collapse. Large doses may bring on convulsions, followed by death.

Average dose, gr. ii.-0.125 Gm.

Methylal is a local anaesthetic and hypnotic, derived from alcohol. It is soluble in water and alcohol, and has an aromatic odor and taste. The sleep produced by it is sound but of short duration. It is depressing in large doses. It has been used in cases of insanity and delirium tremens.

Average dose,  iii.-0.2 mil.

Methylthionine Chloride - Methylene Blue (official)- is one of the "aniline dyes." It is slightly soluble in water. It is a bluish powder, and has been used as an antipyretic and antiseptic. It is also considered a good antiperiodic. It is given in wafers or capsules, and hypodermically. It colors the urine blue or greenish blue.

Average dose, gr. iiss.-0.15 Gm.

Migranin is an antipyrin preparation containing antipyrin, caffeine, and citric acid.

Average dose, gr. viii.-0.5 Gm.


Also a compound of sodium salicylate. Less nauseating.

Average dose, gr. v.-0.3 Gm.


Artificial alkaloid used as a local anaesthetic. Action similar to cocaine but is less poisonous.

Average dose, gr. ss.-0.03 Gm.

Nuclein is a phosphorated proteid obtained from the spleen and other organs in the form of a pale yellow powder, soluble in alkaline solutions but insoluble in water and alcohol. It is said to increase the number of white blood cells and so destroy bacteria.

Average dose, gr. iii.-0.2 Gm.

Orexin is a derivative of chinolin. It is a gray powder of bitter taste, soluble in water and alcohol. It is used as an appetizer and stomachic tonic, but is somewhat irritating, and should not be given on an empty stomach.

Average dose, gr. iii.-0.2 Gm., in capsule, at mealtime, or accompanied by food or some nourishing drink.


A constituent of the atmosphere forming 20% of its volume. Stored under pressure in metal tanks for use (official).