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To the Editor:—
Although many reports of black tongue due to penicillin troches have appeared in the literature, I have seen no mention of black tongue due to aureomycin. I have observed 2 such cases which followed the use of aureomycin troches, and a third case which was due to the newer crystalline aureomycin. Aside from the questionable therapeutic efficacy of aureomycin troches, I think that the members of the medical profession should be well aware of their possible untoward effects.
Phillips E. BLACK TONGUE FROM AUREOMYCIN. JAMA. 1950;143(17):1514. doi:10.1001/jama.1950.02910520056027