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Poisoning by cinchona, quinine, or quinidine; characterized by tinnitus, headache, deafness, and occasionally, anaphylactoid shock.
cinchonism/cin·cho·nism/ (-nizm) toxicity due to cinchona alkaloid overdosage; symptoms are tinnitus and slight deafness, photophobia and other visual disturbances, mental dullness, depression, confusion, headache, and nausea.
A pathological condition resulting from an overdose of cinchona bark or its alkaloid derivatives and marked by headache, dizziness, hearing loss, and ringing in the ears.
a condition resulting from excessive ingestion of cinchona bark or its alkaloid derivatives (quinine or quinidine). Cinchonism is characterized by hearing loss, headache, tinnitus, and signs of cerebral congestion. See also quinine.