Hydrargyri Succinimidum

Glistening crystals, used subcutaneously in 1 to 2 per cent. solution. Dose: 15 minims.

Hydrargyri Tannas (mercurous). A greyish-green powder, insoluble in water. (It is called hydrargotin by one firm.) Dose:1 to 3 grains, in pill or tablet.

Hydrargyri Thymolo-Acetas

A white powder, insoluble in water.

Dose (subcutaneously):1 grain (with or without the same of cocaine) in liquid paraffin or glycerin once a week. Internally 1/2 to 1 grain with potassium iodide in consumption.

Hydrargyri Tribromophenol-ace-tas is used similarly to and is like the last-named.

Hydrargyroseptol

A mixture of chinosol mercurate with sodium chloride. Soluble in water. Used as a vaginal wash.

Hydrargyrum Peptonatum

A 1-per-cent. solution is made by dissolving 1 part of mercuric chloride in 20 parts of water, and adding a solution of 3 parts of peptone in 10 parts of water. Collect and wash the precipitate, which dissolve in a solution of 3/4 part of sodium chloride in 50 parts of water. Make up to 100 parts with water. Dose (subcutaneously): 15 minims. The dry peptonate is a yellowish-brown powder containing 10 per cent. of the metal, and soluble in water.

Mercury Oleo - brassidate. - A combination of mercury with oleic and erucic acids, containing 30 per cent. of Hg. A clear yellow jelly, used in syphilis by inunction of 18 grammes (3ivss.) daily.

Mergal

Mercuric cholate, a greyish-yellow powder exhibited in 1-grain capsules with 2 grains of tannalbin for syphilis.

Mergandol

A glycerin solution of sodio-mercuric glycerinate. Used in doses of 2 c.c. by intramuscular injection.

Mescaline

One of the alkaloids of Anhalonium Lewinii, The sulphate is obtainable should it be needed as a therapeutic agent.

Mesotan

Salicyl - methoxy-methyl ester. A yellow oily liquid. Used as an external application for rheumatism and kindred affections, generally mixed with olive oil or vaseline.

Methacetin (para - oxymethyl-acetanilide). - A colourless, crystalline powder, odourless, but having a saline, bitter taste. Sparingly soluble in water. Therapeutically like acetanilide. Dose:4 to 8 grains, in powder.

Methonal is an analogue of sulphonal, and possesses the same therapeutic properties. Methanal is another name for formaldehyde.

Methyl Salicylate

Artificial oil of wintergreen.

Methylal (Formal)

This is methylene-dimethyl ether, a colourless and highly volatile fluid, soluble in water, alcohol, and fixed oils. Dose as a hypnotic: 60 minims. Is also used externally as a local anaesthetic in the form of ointment or oleaceous liniment (1 in 8). Is an antidote to strychnine.

Methyl-aspirin is said to be a better remedial agent than acetyl-salicylic acid. It is a white, crystalline compound, and is given in the same doses as aspirin.

Methylene Blue

Methylthio-nine hydrochloride, a crystalline solid, soluble 1 in 50 of water. Antirheumatic, antineuralgic, and anti-venereal. Dose:2 to 4 grains, in capsules; also in 1-in-2,000 injections.