BRUCE S. CHANG, M.D.
To the editor: The report by Pederson and colleagues (1) of pruritus in chronic hemodialysis patients relieved by activated charcoal therapy is welcome news. The authors correctly note that the symptom is common, and, as suggested by the number of other therapies previously reported, treatment remains imperfect. Activated charcoal appears to be a benign substance that will have widespread application if others find it to be as efficacious as the authors.
I wish, however, to call attention to a potential problem the authors did not examine. While I was inquiring as to the availability of activated charcoal preparations in our
CHANG BS. Charcoal and Drug Adsorption. Ann Intern Med. ;94:416. doi: 10.7326/0003-4819-94-3-416_1
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Published: Ann Intern Med. 1981;94(3):416.
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