_Tartar emetic_ is diaphoretic, emetic, expectorant, alterative, and
rubefacient.
It is _used externally_ as an irritant in white swellings and
deep-seated inflammations, in the form of an ointment.
It is given _internally_ in pleurisy, bilious fevers, and many other
diseases, but its exhibition requires the skill of a medical man, to
watch its effects.
_Dose_, from one-sixth of a grain to four grains.
_Caution_.--It is a _poison_, and therefore requires great care in
its administration.