How much is dapsone?

Do you mean price/cost or how to dose it? Dapsone is a prescription medicine, and prices vary a lot by country, pharmacy, and tablet strength. If you share your location (country/c city) and the tablet strength (e.g., 25 mg, 50 mg, 100 mg) plus quantity, I can give you a rough price range.

If you’re asking about dosing, here are typical adults' guidelines (with the exact dose to be confirmed by a clinician):

- Dermatitis herpetiformis: commonly started around 50 mg once daily, can be increased to about 100 mg daily (often in divided doses) based on response and tolerance.
- Leprosy (multidrug therapy): dapsone is used as a daily 100 mg dose as part of the MDT regimen.
- Pneumocystis jirovecii pneumonia prophylaxis (in certain high-risk patients): doses around 50–100 mg daily, adjusted for weight and tolerance.

Notes and safety:
- Dapsone can cause methemoglobinemia, anemia, and other hematologic effects; G6PD deficiency increases risk.
- Liver function and blood counts should be monitored as directed by a clinician.
- It can interact with other drugs (e.g., rifampin), so management should be by a healthcare provider.

If you want, tell me your country and the tablet strength you’re considering, and I’ll estimate the price range.