162 VETERINARY MATERIA MEDICA. 



Physiological Action. — Acetanilid is a power- 

 ful antipyretic, analgesic, and antispasmodic, anti- 

 rheumatic, antineuralgic, diaphoretic, and slight 

 antiseptic. Its action somewhat resembles that of 

 antipyrine, but while this is manifested more slowly 

 it continues for a much longer period — i.e., about six 

 hours. It is a cerebral, muscular, and vasomotor 

 stimulant, and leaves no ill after-effects, such as some- 

 times follow the administration of antipyrine. 



Therapeutics. — It is used in the same diseases 

 in which antipj^rine is administered, and also exter- 

 nally as an antiseptic to wounds slow in healing. 



Carbolic Acid — Phenol. 



Carbolic acid — CJIJiO or CJifl — also known as 

 phenyl hydrate, phenyl alcohol, phenic acid, and 

 phenol, was discovered in 1848 by Runge, and is ob- 

 tained from coal tar by fractional distillation and 

 subsequently purified. It occurs as colorless, inter- 

 laced, needle-shaped crystals, sometimes acquiring a 

 pinkish tint, deliquescent on exposure, having a dis- 

 tinctive, slightly aromatic odor, resembling creosote; 

 when diluted a sweetish taste, with a slightly- burn- 

 ing after-taste and a neutral reaction. It produces a 

 benumbing, blanching, and caustic effect upon the 

 skin, coagulates albumen (difference from Creosote, 

 U. S. P.), is soluble in 20 parts of water, very solu- 

 ble in alcohol, ether, chloroform, gl3'cerin, fixed and 

 volatile oils. 



Acidum Carholicum Purum Liquefactum^ pure 



