522 VEGETABLE DRUGS 



Spiritus Camphorce, Spirit of Camphor. (U. S. & B. P.) 



Dissolve camphor, 100, in alcohol, 800 ; filter, and add alcohol to 

 make 1000. (U. S.) 



Dose.— H. & C, |i.-ii. (30.-60.) ; D., 3ss.-i. (2.-4.). 



Linimentum Camphorm. Camphor Liniment. (U. S. & B. P.) 



Synonym. — Camphorated oil. 



Camphor, 200 ; cottonseed oil, 800. (U. S. P.) 



Ceratum Camphorce. Camphor Cerate. (U. S. P.) 

 Camphor liniment, 100 ; white wax, 300 ; lard, 600. 



Camphora Monohromata, Monobromated Camphor. doHisBrO, 



(U. S. P.) 



Derivation. — Made by heating camphor and bromine together at a 

 temperature of 172°F. QLTC.) and solution in benzin. C10H16 + 2 

 Br = C10H16 Br O + H Br. Recrystallized from hot alcohol. 



Pi'operties. — Colorless, prismatic needles or scales, having a mild, 

 camphoraceous odor and taste; permanent in the air, unaffected by 

 light, and neutral to litmus paper. Almost insoluble in water; freely 

 soluble in alcohol, ether, and chloroform, hot benzin and fixed and 

 volatile oils; slightly soluble in glycerin. 

 Dose.— D., gr.ii.-x. (.12-.6). 



Action External. — Camphor resembles the volatile oils 

 chemically and physiologically. It is a slight antiseptic 

 externally, and parasiticide. The vapor of camphor killa 

 moths, fleas, bugs, etc. Camphor is a mild irritant, produc- 

 ing a rubefacient action followed by partial anaesthesia. It 

 is eliminated in part by the skin and occasions some diar- 

 phoresis. 



Action Internal. — Alimentary Canal. — Camphor stimu- 

 lates the stomach, increasing the secretion, motion and 

 vascularity of the organ. In the bowels camphor is supposed 

 to overcome pain, spasm, and check secretion in diarrhoea,, 

 but has little effect in normal conditions and in therapeutic 

 doses. 



Circulation. — The heart is stimulated by camphor, and 

 the pulse is increased in force and frequency by medicinal 

 doses. The drug acts in part directly and in part reflexly 



