nervine

& 8. [Low Lat. nervinus, from Lat. nervus =a sinew.] A. As adj .: Capable of calming or quieting nervous excitement, or of otherwise acting upon the nerves. B. As subst.: A medicine or preparation for act ing on the nerves. nervine-tonics, s. pl. Pharm.: Medicines which restore the tone of the nervous system. They are divided into two cla es, those which are simply nervine tonics and those which are also anti-periodics. Of the former are the salts of iron, nitrate of silver, oxide of silver, nux vomica, strychnia, .; of the latter, cinchona bark, the salts of quinine, .