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JAMA. 1887;IX(4):123-124. doi:10.1001/jama.1887.02400030027013.
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(FROM OUR OWN CORRESPONDENT.)  Incompatibility of Calomel and Bromide of Potassium—Bergeon's Method—Inconveniences of Iodoform—Cocaine Accidents.In a note by M. Pierre Vigier in the Gazette Hebdomadaire the author brings to notice the incompatibility of the bromide of potassium and calomel. If, states the author, a few drops of a concentrated solution of the iodide of potassium be poured on calomel, the latter becomes green, that is to say, the mixture becomes a proto-iodide of mercury. This incompatibility is well known, and consequently great care is taken that these salts are not prescribed together, nor even after a short interval between them. The same precautions should be taken with the bromide of potassium, though the reaction between it and calomel is less than that between the latter and the iodide of potassium. Owing to the knowledge of this fact no medical man would prescribe the two drugs together, nor would he


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