TY - JOUR T1 - A case of dapsone-induced methaemoglobinaemia JF - Clinical Medicine JO - Clin Med SP - 519 LP - 521 DO - 10.7861/clinmed.2020-0364 VL - 20 IS - 5 AU - Yee Ann Tan AU - Kai Choon Ng AU - Seng Wee Cheo AU - Tee Tat Khoo AU - Qin Jian Low Y1 - 2020/09/01 UR - http://www.rcpjournals.org/content/20/5/519.abstract N2 - Methaemoglobinaemia is an uncommon but potentially serious condition. It can be caused by congenital or acquired cause. Drug-induced methaemoglobinaemia is the commonest cause of acquired methaemoglobinaemia. The clinical signs and symptoms of methaemoglobinaemia include dyspnoea, desaturation, presence of saturation gap, headache, nausea and seizures depending on level of serum methaemoglobinaemia. We illustrate a case of dapsone-induced methaemoglobinaemia and its successful treatment by intravenous methylene blue. ER -