174 THE MEDICINAL PLANTS OF THE PHILIPPINES 



CONVOLVULACE^l. 



Convolvulus Family. 



Ipomcea hederacea, Jacq. (/. nil, Roth.; Convolvulus nil, 

 L. and Blanco.) 



Nom. Yulg. — 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 the 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 of Kaladana. — Dose, 30-60 centigrams in pill. 



Powdered seeds 500 grams. 



Alcohol . 2 liters. 



Water 4J " 



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



Seeds. 75 grams. 



Alcohol 500 " 



Compound Powder of Kaladana. — Dose, 3-3} 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 h 

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

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

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

 nauseous, persistent, exciting the saliva and irritating th( 

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



