Gentian is an excellent tonic and stomachic; but when given in large
doses, it acts as an aperient.
It is _used internally_ in all cases of general debility, and when
combined with bark is used in intermittent fevers. It has also been
employed in indigestion, and it is sometimes used, combined with sal
volatile, in that disease; but, at other times alone, in the form of
infusion. After diarrhoea, it proves a useful tonic. Its infusion is
sometimes applied _externally_ to foul ulcers.
_Dose_, of the _infusion_, one and a half to two ounces; of the
_tincture_, one to four drachms; of the _extract_, from ten to thirty
grains.