4. Vapour of iodine, administered in the same way as chlorine;
occasionally used in phthisis.
5. Oxygen and hydrogen gases, either alone or diluted with air; employed
in asthma and phthisis, by means of a bladder and mouth-piece.
6. Tar vapour, obtained by heating tar, mixed with a little carbonate of
potash, over a spirit lamp, occasionally employed in bronchitis, and
recommended by Sir A. Crighton in phthisis, but appears of little value in
the latter.
7. Steam of hot water; in bronchitis, and to allay the cough in phthisis;
small quantities of the seeds of henbane, opium, poppy-heads, &c., are
frequently added to produce an anodyne effect. See CIGARS (in pharmacy),
DISINFECTANTS, FUMIGATION, VAPOURS, &c.
=INJEC'TION.= _Syn._ INJECTIO, L. In _medicine_, any liquid medicine
thrown into a cavity of the body by means of a syringe or an elastic bag.
Those thrown into the rectum are commonly called 'clysters' or 'enemata,'
and are noticed under the head of ENEMA. The following are the principal
injections employed in medical practice at the present day:--
=Injection of Ac'etate of Ammo''nia.= _Syn._ INJECTIO AMMONIÆ ACETATIS, L.
_Prep._ (Ph. Chirur.) Solution of acetate of ammonia (Ph. L.), 1 part;
water, 3 parts. Refrigerant.
=Injection of Ac'etate of Cop'per.= _Syn._ INJECTIO CUPRI ACETATIS, L.
_Prep._ From verdigris, 10 gr.; oil of almonds (hot), 4-1/2 oz.; triturate
until dissolved, and strain. Detergent.
=Injection of Ac'etate of Lead.= _Syn._ INJECTIO PLUMBI ACETATIS, L.
_Prep._ 1. Sugar of lead, 1/2 dr.; distilled water, 1/2 pint.
2. (Dr Collier.) Acetate of lead, 40 gr.; rose water, 8 fl. oz. Astringent
and sedative. See SEDATIVE INJECTION.
=Injection of Ac'etate of Zinc.= _Syn._ INJECTIO ZINCI ACETATIS, L.
_Prep._ 1. (Ellis.) Acetate of zinc, 8 gr.; rose water, 4 fl. oz.
2. (Brodie.) Sulphate of zinc, 1 dr.; sugar of lead, 80 gr.; water, 1
pint; dissolve separately, mix, and filter. Astringent.
=Injection, Alkaline.= _Syn._ INJECTIO ALKALINA, I. LITHONTRIPTICA, L.
_Prep._ (Chevallier.) Carbonate of soda, 1 dr.; Castile soap, 2 dr.;
water, 12 fl. oz.; dissolve. In certain forms of calculus.
=Injection of Aloes.= (Bories.) _Syn._ INJECTIO ALOES. _Prep._ Aloes, 10
gr.; muriate of ammonia, 10 gr.; honey of roses, 1 oz.; fennel water, 6
oz.
4. (Dr Reece). Alum, 1 dr.; acetate of lead, 1-1/2 dr.; triturate with 6
oz. of boiling water, and in an hour filter.
=Injection of Al'um.= _Syn._ INJECTIO ALUMINIS, L. _Prep._ 1. (Dr
Collier.) Alum, 18 gr.; rose-water, 6 fl. oz.; dissolve. For the urethra.