1-10%
Hemolysis,Methemoglobinemia
<1%
Reactional states (ie, abrupt changes in clinical activity occurring during any leprosy treatment; classified as reversal of erythema nodosum leprosum reactions),Insomnia,Headache,Exfoliative dermatitis,Photosensitivity,Nausea,Vomiting,Anemia,Leukopenia,Agranulocytosis,Hepatitis,Cholestatic jaundice,Peripheral neuropathy (usually in nonleprosy patients),Blurred vision,Tinnitus,SLE
Potentially Fatal: Agranulocytosis, serious cutaneous hypersensitivity reactions, exfoliative dermatitis.