Methemoglobin-induced depression, seizures severe cyanosis, headache, hemolysis. Initiate and continue the full dose without interruption. Leprosy, bacteriologically negative tuberculoid and indeterminate type. Leprosy, lepromatous and borderline clients. Dapsone is continued for up to 10 years until skin scrapings and biopsies are negative for 1 year.
Dosage is correspondingly less in children.