Dosage: 1 Gm. or 15 grains (N.F.).
Fluidextractum Rhamni Catharticae (Fldext. Rham. Cathart.), Fluidextract of Rhamnus Cathartica, N.F.—Rhamnus cathartica (100%). Absolute alcohol content about 40 per cent.
Dosage: 1 Cc. or 15 minims (N.F.).
Syrupus Rhamni Catharticae (Syr. Rham. Cathart.), Syrup of Rhamnus Cathartica, N.F. (Syrup of Buckthorn Berries, Syrupus Spinae Cervinae).—Fluidextract of rhamnus cathartica (20%), oil of fennel and oil of cinnamon, in syrup. Absolute alcohol content about 8 per cent.
Dosage: 8 Cc. or 2 fluidrachms (N.F.).
*Rheum (Rheum), Rhubarb, U.S.P.—Rhizome and root.
Action and Uses: Efficient and pleasant laxative, its action resembling cascara. It is, however, also somewhat astringent. Used especially in the form of aromatic tincture and aromatic syrup.
The official preparations of rhubarb are needlessly numerous, those that are starred being quite sufficient. Many of the official mixtures and pills are unnecessarily complex.
Dosage: 1 Gm. or 15 grains (U.S.P.).
*Extractum Rhei (Ext. Rhei), Extract of Rhubarb, U.S.P. (Powdered Extract of Rhubarb).—One Gm. extract represents 2 Gm. rhubarb.