NAMES, PROPERTIES, AND DOSES OF MEDICINE. 171 
Uit or Savin.—The oil distilled from fresh savin tops. 
Savin acts as an irritant, both internally and externally; it 
also appears to exert much power upon the uterus as an 
emmenagogue. In large doses it causes abortion, and its 
administration is attended with much danger. Savin should 
not be given in pregnancy. Dose: 1 to 4 drops. Dangerous. 
2s per Oz. 
Or. or Spearmrnt.—The oil distilled from the fresh herb 
when in flower of mentha viridis. Spearmint oil is stimulant 
and carminative, and 18 used as an adjunct to purgative 
medicines to correct flatulency. Dose: one to four drops. 
Use carefully. 
Oi. or TeEresintu, (oil of turpentine).—Oil distilled. 
usually by aid of steam from the oleoresin or turpentine 
of pinus australis, imported from America and France. In 
small doses it becomes absorbed, and acts as a stimulant, 
antispasmodic, astringent, purgative, and possesses great 
power of destroying worms in the elementary canal. In large 
doses it injures the kidneys and causes bloody urine. Dose: £ 
to 20 drops. Dangerous. 
Peprsin.—The stomach of a recently killed pig, sheep, or 
calf, is cut open, and any adherent portions of food, &c., 
carefully removed, and the exposed mucous surface slightly 
and rapidly washed with cold water. The mucous membrane 
is then scraped with a blunt knife, and the viscid pulp thus 
obtained spread out on a plate of glass, and quickly dried. 
Pepsin has been given largely in cases of dyspepsia, especially 
when of the atonic kind, and has been asserted to be a very 
valuable remedy. Dose: two to five grains. 4s. to 6s. per oz. 
PuospuHorus.—Prepared from phosphoric acid, or super- 
phosphate of calcium, made by acting upon bone ashes with 
oil of vitrol. Phosphorus is said to act as a powerful stimulant 
and aphrodiosiac. It has been employed on the continent in low 
fevers, cholera, &c. It has been used for headaches resulting 
from too prolonged mental occupation. Dose in the form of 
