Remarks

This arsenical preparation, though strongly recommended by Biett and Cazenave, is rarely used at the present time. Whether it is as frequently useful as the potassium and sodium salts is a question that cannot at present be answered, nor can the special indications for its use be pointed out. A convenient form for its administration would be a 1 per cent. solution in water, the ordinary dose of which would be from one to five minims. Biett used a weaker solution.

There arc three arseniates of ammonium; the soluble acid salt is the one to be employed.