The most frequent mode of administration is the hypodermic method, on account of the extreme rapidity with which it is absorbed.
Of the numerous preparations only two need be mentioned - the liquid extract (dose 10 minims to 2 drachms or more), and the hypodermic injection.
Hypodermic tabloids of morphine sulphate either alone or combined with atropine are much in use.
There is some reason to believe that this complicated and variable apparatus is used for stabbing the body of another animal and that beginning as a weapon for catching prey it has become modified for hypodermic impregnation and only gradually adapted for insertion into the bursa copulatrix.
Fibrolysin is a modified form of thiosinamine made by mixing it with sodium salicylate Fibrolysin is freely soluble and may be given in hypodermic or intra-muscular injection.