A text-book of practical therapeutics . ure of iodine. The needle should be large and long and welloiled before it is used. A 20-gauge needle is the best needle to useto carry the heavy fluid. If an oily solution is used the mercurialdoes not attack the metal. The buttock having been sterilized, theinjection should be given while the patient is in the standing posi-tion at the sites shown in Fig. 55. This method has a great advan-tage in point of convenience and pain, as compared to the bichlorideof mercury which often causes soreness and induration. It is ofgreat importance that the needle an
A text-book of practical therapeutics . ure of iodine. The needle should be large and long and welloiled before it is used. A 20-gauge needle is the best needle to useto carry the heavy fluid. If an oily solution is used the mercurialdoes not attack the metal. The buttock having been sterilized, theinjection should be given while the patient is in the standing posi-tion at the sites shown in Fig. 55. This method has a great advan-tage in point of convenience and pain, as compared to the bichlorideof mercury which often causes soreness and induration. It is ofgreat importance that the needle and syringe should be thoroughlycleansed after each injection, as the insoluble drug readily clogs the 382 DRUGS instrument. One grain should be injected deeply into the musclesof the gluteal region every fourth day, and this may be increased toevery second day if no evidences of the systemic action of the drugappear, but these injections should not be continued too long, asabsorption is uncertain as to speed and ptyalism may be Fig. 55.—Sites for the mercurial injections. (Gottheil.) Yellow Sulphate of Mercury. Hydrargyri Subsulphas Flavus has been used under the name ofturpeth mineral as an irritant in chronic ophthalmia and also as aprompt emetic in croup. It is a quick and certain emetic, and it isclaimed, does not produce depression, but the writer would recom-mend great care in its use. The dose for a two-year-old child is2 to 5 grains (), repeated in fifteen minutes if necessary. If as much as 5 grains () has been given, and emesis does notfollow, other emetics or the stomach-pump must be used to preventgastro-intestinal irritation. Yellow Wash. Yellow wash (Lotio Hydrargyri Flam, B. P.) is made by adding30 grains () of corrosive sublimate to a pint (480 cc) of lime-water. It is used for the same purposes as the black wash alreadymentioned, but is much more stimulating. METHYL BLUE 383 Licompatibles. — Bichloride of mercury should never be given
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