612 ARTEMISIA SANTONIN 



effects. Solutions applied to the eye contract the pupil and 

 diminish ocular tension. 



Areca nut is an astringent resembling catechu, and, when 

 freshly powdered, an effective vermicide, especially for dogs, 

 proving destructive alike to tape- and round-worms. Its 

 effects on horses and cattle are less satisfactory. A suitable 

 dose given to a dog which has been fasted for twelve hours 

 often acts effectively within half an hour, but it is usually 

 desirable to conjoin with the areca ll\x. to 17\xv. of male 

 fern extract. This combination is a most effectual remedy 

 for tapeworm in dogs. If the parasites are not removed 

 a second dose of the mixture should be given two or three 

 days later. Taenaline, a registered liquid preparation 

 containing the taeniafuge principles of freshly ground areca 

 nut, is a convenient and efficient vermicide. 



DOSES, etc. Areea nut. Dogs, grs. x. to 39 ; horses, 

 3iv. to 3vi- ; poultry, gr. j. to grs. x. The dose of the 

 powder for the dog is about 2 grains for every pound of the 

 animal's weight (Mayhew). It is administered in linseed 

 oil, soup, mucilage, butter, or milk. 



Arecoline hydrobromide. Horses and cattle, gr. f to 

 grs. 1J ; dissolved in TT[60 to 11^90 of sterilised water, and 

 injected subcutaneously or into the jugular vein. In 

 laminitis the dose is repeated daily for four or five days. 

 In colic a single injection may suffice. To contract the pupil 

 a 1 per cent, solution of the hydrobromide may be employed. 



ARTEMISIA-SANTONIN 



ARTEMISIA ABSINTHIUM. Wormwood. (Not official.) 

 ARTEMISIA MARITIMA. Santonica. Nat. Ord. Composite. 

 SANTONIN. A crystalline principle prepared from Santonica. 

 (B.P.) 



Wormwood and Santonica are low shrubby plants, char- 

 acterised by their aroma and bitterness. They belong to the 

 natural order Compositae, which comprises the familiar 

 southernwood and tansy, the mildly anodyne lettuce, and 

 the harmless dandelion. * 



The dried Artemisia absinthium contains a volatile cam- 

 phoraceous oil, absinthol, and a bitter extract, yielding the 



