Mercurius. (1) MERCURIUS OXYDULATUS NIGER.   Mercurius solubilis Hahnemanni. Dimercuros ammonium nitrate. 2(NH2Hg2) NO3H2O. [A mercurial preparation devised by Hahnemann as a substitute for the corrosive mercurial salts in use

Mercurius General features: The pathogenesis of Mercury is found in the provings of Merc. viv. and Merc. sol., two slightly different preparations, but not different enough to make any distinction in practice. Mercury is