MERCURY, 1}:u1CINAL CSEs OF. The twenty: one official preparations of hydrargyrum, or cury. may be classified as follows: (1) lions of mercury. including mereury with chalk, blue mass, mercurial ointment, and two plasters of memory; (2) the chlorides of mercury and their preparations, including calomel, eorrosive sublimate, and others: (3) the oxides trml th.ir preparations. including the red precipitate and others: (41 the iodides aril Ilrcit preparations, including the red iodide. the yellow iodide, and others: ( ? acid combinations and their imor, including the solution of mercuric nitrate and others: (G) cyanide of mercury: and (71 the triturations. the official prepara tion•i, the unotlieial preparation., are well known: Yellow solution of mereury blnek lotion of mercury and red ointment of mercuric nitrate eit rine Merenry is purgative. alterative. and tome, and promotes the llow of bile. of it S prepare.. lions are el some are caustic, some arc poi.' 0101N. In small quantities some of the are ionic. while in large quantities they eanse of the diminishing the number of the red redueing nutrition. and impairing digestion, finally causing waste of tissue. exhibition of mercury causes a cached ic condition termed hydra rgyrism.
Mercury stimulates glands to a production of an increased amount of secretion. Ilydrargyrism, commonly called 'salivation' front one of its symptoms, consists of foetid breath, swollen and spongy gums, with a blue marginal line. sore
mouth, swollen and tender tongue. excessive pro duction of saliva, loss of appetite, dianinea, and fever.
Mercury is used in syphilis, tonsillitis and other glandular affections, gastritis, dysentery, gastric ulcer, early cirrhosis of the liver, typhoid fever, diphtheria, Asiatic cholera, pneumonia, gastro-enteric disturbances, conjunctivitis, en larged thyroid, and enlarged spleen.
Ilichloride of mercury is very largely used as an antiseptic. It is irritant and corrosive, and in toxic doses causes severe gastro-intestinl irri tation, nausea, vomiting, suppression of urine, blood diarrhoea, convulsions, and collapse. It is, however, a very safe and valuable internal remedy in proper dosage. It occurs in heavy, colorless crystals, with sharp metallic taste and acid reaction. It is soluble in 2 parts of boiling water, 3 of alcohol, and 16 of water. Its symbol is It is used locally as a parasiticide in a solution of 1 part in 250 parts of water, and as a general surgical antiseptic in a solu tion of 1 part to 1000 of water, or 1 to 2000, sometimes 1 part to 5000 of water. In these dilutions it is an efficient antiseptic for cleansing wounds, moistening gauze dressings, injecting into cavities, etc. See the articles ANTIDOTE and TOXICOLOGY.