Severe Dapsone-Induced Hypoalbuminemia in a Case of Mucous Membrane Pemphigoid.

Dapsone, or 4,4′-diaminodiphenylsulfone, is commonly used in several dermatologic indications such as neutrophilic dermatoses, vasculitis, and autoimmune bullous diseases. Historically, dapsone was used for sleep disorders and then as an antibiotic to treat streptococcal infection, tuberculosis, and leprosy.