174 THE JFEDICINAL PLANTS OF THE PHILIPPINES 



CONVOLVULAOE^. 



Convolvulus Family. 



Ipomoea hederacea, Jacq. {I. nil, Roth.; Convolvulus nil, 

 L. aud Blanco.) 



NoM. VuLG. — Bulakan, Tag.; Kala-Danah, Indo-Eng. 



Uses. — This plant is not used as a medicine by the Fili- 

 pinos, but is official in the Pharmacopoeia of India from which 

 we copy its indications and official preparations. 



The seed is the part employed, its cathartic properties being 

 much like those of jalap, though less energetic. An excellent 

 substitute for (lie latter is 2 or 3 grams of kala-danah seeds in 

 powder form, and no unpleasant effects attend its operation. 



The official preparations are : 



Extract op Kaladaxa. — Dose, 30-60 centigrams in pill. 



Powdered seeds 500 grams. 



Alcohol 2 liters. 



Water 4i " 



Tincture of Kaladana. — Dose, 8-12 grams. 



Seeds 75 grams. 



Alcohol 500 " 



Compound Powder of Kaladana. — Dose, 3-3J grams. 



Powdered seeds 150 grams. 



Acid tartrate of potassium 270 " 



Powdered ginger 30 " 



The last is an excellent substitute for the corresponding prep- 

 aration of jalap. 



Resin of Kaladana. — Dose, 30-50 centigrams. It is 

 prepared like resin of jalap and is a safe and sure purgative. 

 In mass it has a dark color, but is gray when powdered. The 

 odor ia rather unpleasant, the taste sweetish and then acrid, 

 nauseous, persistent, exciting the saliva and irritating the 

 fauces. It was introduced into practice by Dr. G. Vidie. 



