Valerian is a powerful antispasmodic, tonic, and excitant, acting
chiefly on the nervous centres.
_Used internally_, it is employed in hysteria, nervous languors, and
spasmodic complaints generally. It is useful in low fevers.
_Doses of various preparations_.--_Powder_, from ten grains to half a
drachm, three or four times a day; _tincture_, from two to four
drachms; _ammoniated tincture_, from one to two drachms; _infusion_,
from two to three ounces, or more.