Pharbitis CAerulea. (Kaladana and Mirchai, Hind.) Nat. Ord. Convolvulaceae. Linn. Syst. Pentandria Monogynia. Hab. East Indies.

Med. Prop. and Action. The seeds are purgative, and are regarded by Dr. O'shaughnessy as equal, if not superior, to Jalap, in certainty of action. In doses of gr. xxx. - xl they act as a quick, safe, and pleasant cathartic. In 100 cases in which it was exhibited by Dr. O'shaughnessy, it proved purgative in 94, occasioned vomiting in 5, and griping in 15. It produced, on an average, five stools within 2 1/2 hours; the operation commenced in an hour, and was never delayed beyond four hours. The alcoholic extract keeps good for several months, acts with certainty and speed, and the taste is scarcely perceptible. Many Indian medical officers have testified to its efficacy. It may be given in the form of Tincture (Seeds oz. viij. - Proof Spirit Oij.) in doses of fl. drm. j. - fl. drs. ij., or in Alcoholic Extract, in doses of gr. v. - x.

Therapeutic Uses. The same as those of Jalap, for which it forms an excellent substitute.