a condition resulting from an excessive dose of cinchona bark or its alkaloids, characterized chiefly by headache, ringing in the ears, and vomiting
cinchonism in American English
(ˈsɪnkəˌnɪzəm; ˈsɪŋkəˌnɪzəm)
noun
a pathological condition resulting from a reaction to or an excessive use of cinchona bark or any of its derivatives, as quinine: it is characterized by headache, ringing in the ears, deafness, etc.