Cinchonism or quinism is a pathological condition in humans caused by an overdose of quinine or its natural source, cinchona bark. Quinine is medically used to treat malaria.
cin·cho·nism (s ng k-n z m, s n ch-) n. A pathological condition resulting from an overdose of cinchona bark or its alkaloid derivatives and marked by headache, dizziness ...
It is usual for quinine in therapeutic doses to cause cinchonism; in rare cases, it may even cause death (usually by pulmonary edema). The development of mild cinchonism is not a ...