Three cases of benign familial chronic pemphigus which were refractory to the usual therapeutic modalities occurred. The patients demonstrated a dramatic response to dapsone (4,4′-diaminodiphenylsulfone).
Sire DJ, Johnson BL. Benign Familial Chronic Pemphigus Treated With Dapsone. Arch Dermatol. 1971;103(3):262–265. doi:10.1001/archderm.1971.04000150032004
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