_Obs._ This extract is tonic, aromatic, and stomachic.--_Dose_, 5 to 15
gr., or more, 2 or 3 times a day. 28 lbs. of bark yield about 5-1/4 lbs.
of extract.
=Extract of Cas'sia.= _Syn._ EXTRACTUM CASSIÆ, L. See CASSIA PULP.
=Extract of Cat'echu.= _Syn._ EXTRACTUM CATECHU, L. _Prep._ 1. From
decoction of catechu.
2. (P. Cod.) From the infusion in boiling water. Astringent and
tonic.--_Dose_, 5 to 25 gr. See CATECHU.
=Extract of Cel'andine.= _Syn._ EXTRACTUM CHELIDONII, L. _Prep._ 1. (Ph.
Bor.) From the herb (_Chelidonium majus_), as ALCOHOLIC EXTRACT OF
ACONITE--Ph. Bor.--_Dose_, 3 to 10 gr.
2. (Van Mons.) From the expressed juice, coagulated by heat, filtered, and
evaporated, towards the end adding the coagulum.--_Dose_, 5 to 15 gr., or
more. Used as a drastic hydragogue in dropsies; and in scrofula, &c.
=Extract of Cen'taury.= _Syn._ EXTRACTUM CENTAURII, L. Extracts under this
name are prepared from 'American centaury' (_Sabbatia angularis_), and
'common centaury' (_Erythræa Centaurium_). Prep. 1. By evaporating the
decoction, or the infusion made with hot water. The dose and properties
resemble those of extract of gentian.