Arsacetin

Sodium para-acetyl-amino-phenylarsonate or sodium acetyl-arsanilate. A white, crystalline powder soluble I in 10 of cold water, and solutions can be boiled without decomposition. Employed in sleeping sickness (trypanosomiasis) and syphilis in doses of 9 grains hypodermically, and 1 1/2 to 7 1/2 grains in disorders of digestion, anaemia, and nervous troubles.

Arsamin

Sodium para-amino-phenylarsonate or sodium arsanilate. Uses as the last. Dose: 3/4 to 3 grains.

Arsan

A combination of gli-dine and arsenic. A brown, amor-phous powder, marketed in 8 1/2 grain tablets, each containing 1/32 grain of arsenic.

Arsenium Bromide

Deliquescent crystals, given in doses of 1 /60 to 1/15 grain for diabetes.

Arsenogen

An iron compound containing phosphorus and arsenium, the latter being easily split off.

Arsentriferrol

An aromatised solution of arsenogen and triferrin. Recommended as a tonic.

Arterenol

A derivative of synthetic suprarenin, obtained by the reduction of amino-aceto-pyrocate-chin. The hydrochloride is crystalline, and soluble in water. Used like suprarenin.

Arthrisin

Acetyl-salicylic amide. Employed in articular rheumatism in the same doses as sodium salicylate.

Arylarsonates

See Kharsin, Orsudan, and Soamin.

Asaprol, or abrastol, is calcium betanaphthol - alphamonosulpho-nate,(C10H6OHSO3)2Ca,3H2O. It is a white or greyish powder, soluble in water and alcohol, and is recommended in 8 to 15 grain doses for articular rheumatism and enteric fever.

Aseptobilin

A purified extract of bile, obtained from the ox or pig, in 2-grain keratin-coated dragees.

Aseptol is a 33-per-cent. solution of orthophenol-sulphonic acid. As an antiseptic in 1 to 10 per cent. solutions, and internally in 10 to 20 grain doses.

Aseptolin is the trade-name of pilocarpine carbolate, a colourless, oily fluid. A solution containing 1 part in 5,000 parts of 2 3/4-per-cent. aqueous carbolic-acid solution is used in malaria and tuberculosis. Dose of the solution,by subcutaneous injection, I drachm.

Asiphyl

The mercuric salt of para-anilinarsinic acid.

Aspirin

Bayer's name for acetyl-salicylic acid, B.P.

Aspirochyl

Para-amino-phe-nyl mercuric arsenate. For syphilis.

Aspirophen is amido-acet-para-phenetidin acetyl-salicylate, a sparingly soluble, white powder, used like aspirin in 5 to 15 grain doses.

Asquirrol

Dimethyl mercury containing 56 per cent, of mercury. Soluble in water. Issued in 1-c.c. ampoules for hypodermic use in syphilis.

Asterol is paraphenolsulphonate of mercury; a white powder soluble in hot water, and used in 2 to 4 per cent. solutions as an antiseptic.

Astrolin

Methylethylglycocol-licantipyrin, a colourless, crystalline powder, readily soluble in water. Dose: 8 to 15 grains in neuralgia and migraine.