| Evidence of cinchonism, such as tinnitus, may occur occasionally in patients receiving 260-520 mg of quinine sulfate daily. |
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| Mild cinchonism consists of ringing in the ears, headache, nausea and disturbed vision. |
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| I gave it as my opinion that the man was suffering from chronic cinchonism, or quinin poisoning. |
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| Patients return to hospital deaf from cinchonism, ill with fever, and showing parasites in their peripheral blood. |
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| Some patients are hypersensitive to quinine and even small doses may give rise to cinchonism. |
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