Important Safety Information - Dapsone

Written by HeyDoctor Medical Team

Important safety information and consumer warnings you should know about dapsone.


The risk information provided here is not comprehensive. To learn more, talk about any new medicine with your healthcare provider and pharmacist. The full FDA-approved product labeling can be found at or 1-800-555-DRUG. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit or call 1-800-FDA-1088.

Dapsone (Aczone)

Important: For use on skin only (topical use). Do not use Dapsone Gel, 7.5% in your mouth, eyes, or vagina.

What is Dapsone Gel, 7.5%?

Dapsone Gel, 7.5%, is a prescription medicine used on the skin (topical) to treat acne in people 12 years and older. Dapsone Gel, 7.5%, has not been studied in children under 12 years of age.

Before you use Dapsone Gel, 7.5%, tell your doctor about all of your medical conditions, including:

  • have a glucose-6-phosphate dehydrogenase deficiency (G6PD)
  • have higher than normal levels of methemoglobin in your blood (methemoglobinemia)
  • are pregnant or plan to become pregnant. It is not known if Dapsone Gel, 7.5% will harm your unborn baby.
  • are breastfeeding or plan to breastfeed. Dapsone Gel, 7.5% can pass into your breast milk and may harm your baby.

You and your doctor should decide if you will use Dapsone Gel, 7.5%, or breastfeed. You should not do both.

Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially, tell your doctor if you are using acne medicines that contain benzoyl peroxide. Use of benzoyl peroxide with

Dapsone Gel, 7.5% at the same time may cause your skin or facial hair to temporarily turn yellow or orange at the site of application.

How do I use Dapsone Gel, 7.5%?

  • Use Dapsone Gel, 7.5% exactly as your doctor tells you to use it.
  • Apply Dapsone Gel, 7.5% one time a day.
  • Gently wash and pat dry the areas of your skin where you will apply Dapsone Gel, 7.5%.
  • Apply a pea-sized amount of Dapsone Gel, 7.5% in a thin layer to the entire face. A thin layer may also be applied to other affected areas as instructed by your doctor.
  • Rub Dapsone Gel, 7.5% in gently and completely.
  • Wash your hands after applying Dapsone Gel, 7.5%..
  • If your acne does not get better after using Dapsone Gel, 7.5% for 12 weeks, talk to your doctor about continuing treatment.

What are the possible side effects of Dapsone Gel, 7.5%? Dapsone Gel, 7.5% may cause serious side effects, including:

  • Decrease of oxygen in your blood caused by a certain type of abnormal red blood cell (methemoglobinemia). Stop using Dapsone Gel, 7.5% and get medical help right away if your lips, nail beds, or the inside of your mouth turns grey or blue.
  • Breakdown of red blood cells (hemolytic anemia). Some people with G6PD deficiency using Dapsone Gel, 7.5% may develop mild hemolytic anemia. Stop using Dapsone Gel, 7.5% and tell your doctor right away if you get any of the following signs and symptoms:
  • back pain
  • shortness of breath
  • tiredness or weakness
  • dark brown urine
  • fever
  • yellow or pale skin

The most common side effects of Dapsone Gel, 7.5% include dryness and itching of the skin being treated.

These are not all of the possible side effects of Dapsone Gel, 7.5%. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store Dapsone Gel, 7.5%?

  • Store Dapsone Gel, 7.5%, at room temperature 68oF to 77oF (20oC to 25oC).
  • Protect Dapsone Gel, 7.5% from freezing.
  • Keep Dapsone Gel, 7.5% and all medicines out of the reach of children.

General information about the safe and effective use of Dapsone Gel, 7.5%.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use Dapsone Gel, 7.5% for a condition for which it was not prescribed. Do not give Dapsone Gel, 7.5% to other people, even if they have the same symptoms you have. It may harm them. You can ask your doctor or pharmacist for information about Dapsone Gel, 7.5% that is written for health professionals.

What are the ingredients in Dapsone Gel, 7.5%?

Active ingredient: dapsone Inactive ingredients:

  • diethylene glycol monoethyl ether
  • methylparaben
  • acrylamide/sodium acryloyldimethyl taurate copolymer
  • isohexadecane
  • polysorbate 80
  • purified water
The views expressed in this article intend to highlight alternative studies and induce conversation. They are the views of the author and do not necessarily represent the views of HeyDoctor, and are for informational purposes only, even if and to the extent that this article features the advice of physicians and medical practitioners. This article is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment, and should never be relied upon for specific medical advice.

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