Dapsone is an anti-infectious medicine that contains diaminodiphenylsulfone, a substance that eliminates the bacteria responsible for leprosy and which relieves the symptoms of autoimmune diseases such as dermatitis herpetiformis.This medicine is also known as FURP-dapsone and is produced as tablets.


This medicine cannot be purchased at conventional pharmacies, being only offered by SUS in the hospital after the diagnosis of the disease.

What is it for

Dapsone is indicated for the treatment of all forms of leprosy, also known as leprosy, and dermatitis herpetiformis.

How to take

The use of this medicine should always be directed by a doctor. However, the general indications indicate:


  • Adults: 1 tablet per day;
  • Children: 1 to 2 mg per kg daily.

Herpetiform dermatitis

In these cases, the dose should be adjusted according to the response of each organism, and treatment is usually started at a dose of 50 mg per day, which may be increased to 300 mg.

Possible side effects

The most common side effects include dark spots on the skin, anemia, frequent infections, nausea, vomiting, diarrhea, headache, tingling, insomnia and liver changes.

Who can not take

This medicine should not be used in cases of severe anemia or advanced renal amyloidosis, as well as in case of allergy to any component of the formula.In the case of pregnant and breast-feeding women, this medicine should only be used with the doctor’s advice

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