It is really an American Buckthorn, the Rhamnus Persiana, and it possesses no true advantage over our black Alder Buckthorn, though the bark of this latter must be used a year old, or it will cause griping.

Lozenges also of the Alder Buckthorn are dispensed under the name of "Aperient Fruit Lozenges;" one, or perhaps two, being taken for a dose as required.