(From the nose). Sternutatoria. Er-rhines, called nasal, caput purgia, which last is a barbarous term, implying those remedies which purge the head. These are either errhines, or masticatories: the former is the term given by Galen to sternutatories; substances which, if snuffed up the nose, promote a discharge of mucus from that organ. At present the milder sorts are distinguished by the name of errhines, and the stronger by that of sternutatories, because they excite a sneezing. Besides the general shock that sneezing gives to the whole body, it tends to remove remote obstruction; so as to be useful in lethargies, epilepsies, palsies, apoplexies, head achs, vertigos, catarrhs, gutta serena, etc. The action of sneezing seems to be more extensively useful by its general shock than that of vomiting; but it should be observed, that if there is any kind of plethora in the habit, sternutatories are dangerous. There seems little distinction in the different articles which compose this class, except in their violence. The betony,the sweet marjoram, the orris root, and rosemary tops, are of the milder kind: the asarum, euphorbium, the tobacco, the white hellebore, and the turbith mineral, of the latter. The more acrid are chiefly evacuants. The use of errhines is now very limited, and principally confined to inflammatory obstruclions in the nose, and to gutta serena. The agitation they produce does not extend beyond the head. See Cullen's Materia Medica.