From it are made (a) confectio sulphuris; (b) unguentum sulphuris; (c) sulphur praecipitatum, milk of sulphur (U.S.P.) which has a sub-preparation trochiscus sulphuris each lozenge containing 5 grs.
(i) Sodii carbonis, known as washing soda; this carbonate on heating yields sodii carbonis exsiccatus and sodii bicarbonas; from the latter is made trochiscus sodii bicarbonatis.
Trochiscus Potassii Chloratis, each containing 3 grs.
In io minims; (4) Trochiscus Mor- phinae, gr.
In each; (5) Trochiscus Morphinae et Ipecacuanhae, strength hgr.
A preparation of it is Trochiscus ferri redack (strength, 1 grain of reduced iron in each).