Synonym. Confectio Aromatica. Lond.

(Prepared chalk, one pound; aromatic powder, three pounds.)

Pulvis Cretae Aromaticus cum Opio. Aromatic Powder of Chalk and Opium. (Aromatic powder of chalk, nine ounces and three-quarters; opium in powder, a quarter of an ounce.) One grain of opium is contained in forty grains of this powder.

Chalk is contained in hydrargyrum cum creta, and also in trochisci bismuthi.

Therapeutics. Chalk acts as an antacid and astringent on the intestinal canal; a little becomes absorbed and produces the remote effects of lime. It is used chiefly in diarrhoea, alone or combined with other astringents and aromatics.

Dose. Of calcis carbonas praecipitata, and of creta praeparata, 20 gr. to 60 gr.; of mist. cretae, 1 fl. oz. to 2 fl. oz.; of pulv. cretae aromaticus, 1/2 drm. to 1 drm.; of the pulvis cretae aromaticus, cum opio, the dose depends on the amount of opium desirable to administer.

Adulteration. The same for chalk as for lime, detected by the above tests.