Precipitate Ointment is of two kinds, the red and the white. The former contains red oxide of mercury, the latter ammoniated mercury, or white precipitate. In both cases great care is necessary that the mercury preparations are in a very fine state of division, and are intimately mixed with the ointment base. Both ointments are highly stimulating, and are of service in cutaneous eruptions. The red ointment is also employed in chronic conjunctival ophthalmia.
Precipitate Ointment
Chambers's Encyclopaedia, Volume 8: Peasant to Eoumelia, p. 386
Source scan(s): p. 0395