Dapsone (dapsone) — Uses, Dosage, Side Effects & Safety

Drug class: Antibiotic (sulfone class)

Overview

Dapsone is an antibiotic and anti-inflammatory medicine used primarily to treat leprosy (Hansen’s disease), dermatitis herpetiformis (a skin condition linked to celiac disease), and sometimes for certain types of pneumonia and skin infections. It is also used topically to treat acne. Dapsone works by stopping the growth of bacteria and reducing inflammation in the body. For leprosy, it is usually combined with other antibiotics to prevent resistance. For skin conditions, it helps reduce itching, redness, and blistering. Key points: Dapsone can cause serious side effects, especially in people with certain blood disorders. Regular blood tests are needed during treatment. Always follow your healthcare provider’s instructions and report any unusual symptoms right away.

Therapeutic uses

• Bacterial infections
• Dermatological conditions

Common side effects

• Hemolytic anemia
• Methemoglobinemia
• Peripheral neuropathy
• Skin rash (including SJS/TEN)
• Nausea
• Vomiting
• Anorexia
• Dapsone Hypersensitivity Syndrome

Frequently Asked Questions about Dapsone

What is dapsone used for?

Dapsone is used to treat leprosy, dermatitis herpetiformis, and sometimes for certain types of pneumonia and skin infections. It is also available as a topical gel for acne.

How long does dapsone take to work?

Improvement in skin conditions may be seen within a few days to weeks. For leprosy, treatment usually lasts months to years, and benefits may take several weeks to become noticeable.

Can dapsone cause anemia?

Yes, dapsone can cause hemolytic anemia, especially in people with G6PD deficiency. Regular blood tests are needed to monitor for this side effect.

Is dapsone safe in pregnancy?

Dapsone should only be used in pregnancy if the benefits outweigh the risks. Discuss with your doctor if you are pregnant or planning to become pregnant.

Can I drink alcohol while taking dapsone?

It is best to avoid alcohol while taking dapsone, as it may increase the risk of liver problems and side effects.

What should I do if I develop a rash while taking dapsone?

Stop taking dapsone and contact your doctor immediately, as a rash could be a sign of a serious allergic reaction.

Does dapsone interact with other medicines?

Yes, dapsone can interact with several medicines, including rifampicin, trimethoprim, and antimalarials. Always inform your healthcare provider about all medications you are taking.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.