Zantac Research Today is a free monthly online journal that collates and summarizes the latest research about Zantac, including details on ranitidine, side-effects, allergic reactions, information.

Pseudochromhidrosis: Blue discolouration of the head and neck.

Hill S, Duffill M, Lamont D, Rademaker M, Yung A

Department of Dermatology, Waikato Hospital, Hamilton, New Zealand.

A 57-year-old man is presented with blue pseudochromhidrosis affecting the face and neck following combination treatment with lansoprazole, a proton pump inhibitor, and ranitidine, a type two histamine receptor antagonist. The diagnosis was made on the basis of clinico-histological features and growth of Malassezia furfur, and Bacillus species, not Bacillus cereus, in the absence of lipofuscin. The pseudochromhidrosis resolved on stopping both medications and did not recur on restarting only the proton pump inhibitor.

Published 24 October 2007 in Australas J Dermatol, 48(4): 239-41.
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