Aczone (Dapsone) – Topical

What Is Aczone?

Aczone (dapsone) is a topical prescription treatment for acne. It comes in a gel form that you apply to the affected areas of your skin.

Aczone works in a couple of different ways to treat your acne. It has anti-inflammatory properties, decreasing some redness and swelling in an acne breakout. It is also thought to work by killing certain bacteria that can produce acne.

Drug Facts

Generic Name: Dapsone

Brand Name(s): Aczone

Administration Route(s): Topical

Drug Availability: Prescription

Therapeutic Classification: Anti-acne

Available Generically: Yes

Controlled Substance: N/A

Active Ingredient: Dapsone

Dosage Form(s): Gel/jelly

What Is Aczone Used For?

The Food and Drug Administration (FDA) approved Aczone to treat acne topically in people 12 years of age or older.

Aczone (Dapsone) Drug Information - Illustration by Zoe Hansen

Verywell / Zoe Hansen

How to Apply Aczone

Before applying Aczone, wash and thoroughly dry your skin, as your healthcare provider recommends. 

Follow these instructions while using Aczone:

  • Apply a pea-sized amount in a thin layer to the affected area. This usually means your face, but it might also mean other areas, like your back.
  • Apply once or twice a day, depending on the strength of your prescription. If you take 7.5% Aczone, once-a-day use typically is advised. If you take 5.0% Aczone, twice a day is usually recommended. Follow your healthcare provider’s instructions.
  • Wash your hand after applying the gel.

Don’t apply Aczone to any sensitive regions, like the eyes, the mouth, or your genitals. As a gel meant to go on your skin, you should never swallow Aczone.

Also, don’t apply more Aczone or use it more frequently than your healthcare provider recommends. Using more Aczone than prescribed will not treat your acne any quicker.


Store Aczone at room temperature (68–77 degrees Fahrenheit) and safely away from small children and pets.

Off-Label Uses

When dapsone is packaged as a pill, healthcare providers sometimes prescribe it off-label for other medical conditions. For example, the oral form can be used to treat malaria and some rare skin diseases, such as bullous pemphigoid.

However, the gel-formulation, Aczone, does not have off-label uses. In the future, clinicians might try using it to treat other rare skin conditions off-label.

How Long Does Aczone Take to Work?

Your symptoms might not improve right away after starting Aczone. It’s important to keep using it exactly as prescribed. You might start to notice improvement within a few weeks or more. It may take a few months to see the full effect. If you haven’t noticed an improvement by then, talk to your health care provider. You may need to try a different acne treatment option.

What Are the Side Effects of Aczone?

 This is not a complete list of side effects and others may occur. A medical professional can advise you on side effects. If you experience other effects, contact your pharmacist or a medical professional. You may report side effects to the FDA at or 800-FDA-1088.

Common Side Effects

Most people don’t notice any side effects from Aczone. However, some people might notice problems such as the: 

If you apply benzoyl peroxide after putting on Aczone, you might also notice a slightly orange discoloration to your skin. However, you can usually wash this off.

Severe Side Effects

Severe side effects associated with Aczone can include:


Very rarely, Aczone can cause a serious medical problem called methemoglobinemia. In this condition, the red blood cells that carry oxygen cannot deliver it to the blood normally.

This can cause a person to become extremely pale and short of breath, perhaps within a few hours after using the drug. Methemoglobinemia can even be fatal if not recognized and treated.

Hemolytic Anemia

Another rare but potentially severe side effect is hemolytic anemia. It causes your red blood cells to break down. This leads to paleness, fatigue, and even shortness of breath.

Other Serious Side Effects

People taking Aczone in its tablet form have also rarely had other serious symptoms, like muscle weakness (from a condition called peripheral neuropathy). Or rarely, some have reported severe skin problems. However, it’s not clear if using dapsone as a gel (Aczone) ever causes them.

Check in with your healthcare provider promptly if you notice symptoms like fatigue and paleness. For severe symptoms, like severe shortness of breath, seek immediate emergency treatment.

Report Side Effects

Aczone may cause other side effects. Call your healthcare provider if you have any unusual problems while taking this medication.

If you experience a serious side effect, you or your provider may send a report to the FDA's MedWatch Adverse Event Reporting Program or by phone (800-332-1088).

Dosage: How Much Aczone Should I Take?

Drug Content Provided and Reviewed by IBM Micromedex®

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For topical dosage form (gel):
    • For acne:
      • Adults and children 9 years of age and older—Apply a thin layer on the acne area once a day (7.5% gel).
      • Children younger than 9 years of age—Use is not recommended.

 Missed Dose

It generally isn’t a huge concern if you miss a dose of Aczone. Just apply the gel when you can. If it is very close to your next application, don’t double up, and don’t apply more than usual.

However, you should try to apply the gel exactly as prescribed. That will help you get the best results.

If twice a day feels like too much, ask your medical provider if you can try the 7.5% version of the gel. Most people using that version only need to put it on once a day.

Overdose: What Happens If I Take Too Much Aczone?

Fortunately, it would be hard to overdose on Aczone by applying too much to your skin. Used this way, you are getting a much lower dose than someone taking dapsone in the pill form.

However, if you apply much more than is recommended, checking in with your healthcare provider still makes sense. You’ll also need to seek medical advice if someone accidentally swallows Aczone.

What Happens If I Overdose on Aczone?

If you think you or someone else may have overdosed on Aczone, call a healthcare provider or the Poison Control Center (800-222-1222).

If someone collapses, has a seizure, has trouble breathing, or can’t wake up after taking too much Aczone, call 911 immediately.


Drug Content Provided and Reviewed by IBM Micromedex®

It is important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to use it.

If your condition does not improve within 12 weeks, or if it become worse, check with your doctor.

Check with your doctor right away if you have bluish-colored lips, fingernails, or palms, dark urine, trouble breathing, dizziness or lightheadedness, a headache, pale skin, unusual bleeding or bruising, or unusual tiredness or weakness. These may be symptoms of a serious blood disorder.

Hemolytic anemia may occur while using this medicine. Tell your doctor right away if you have back, leg, or stomach pain, bleeding gums, chills, dark urine, nosebleeds, nausea or vomiting, or yellow eyes or skin.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

What Are Reasons I Shouldn’t Take Aczone?

Anyone who has had methemoglobinemia in the past should not use Aczone. Some people are prone to it for hereditary reasons. Other people might have had an episode of methemoglobinemia in response to a different drug. In either case, you probably should not use Aczone.

People with a rare condition called glucose-6-phosphate dehydrogenase (G6PD) deficiency may also want to avoid using Aczone. They are at a higher risk of red blood cell breakdown (hemolytic anemia) from using Aczone.

Aczone hasn’t been well studied in pregnant people or in people who are breastfeeding. You’d need to weigh the pros and cons of using Aczone with your healthcare provider.

What Other Medications Interact With Aczone?

Using Aczone can affect how your body breaks down other drugs and vice versa. But because only a small dose gets inside your system, your risk of drug interactions is low.

However, it is still important to talk to your healthcare provider about all your medications, including topical medications (like Aczone), herbal medications, and over-the-counter products.

Many different medications might theoretically increase the risk of severe side effects from Aczone. This applies most strongly to people at increased risk of methemoglobinemia or people with G6PD deficiency.

Some examples of these medications are:

 Ask your provider if you should avoid any specific drugs while on Aczone.

What Medications Are Similar?

Fortunately, we now have a lot of different acne treatments. This is encouraging since not every approach works for every person, including Aczone.

Certain products may suit you better based on the kind and severity of your acne, other medical conditions, previous treatment history, and personal preferences.

In terms of medications applied to your skin, some of the main options are:

  • Benzoyl peroxide
  • Antibiotics like Cleocin (clindamycin) or Erygel (erythromycin)
  • Retinoids like Retin-A (tretinoin) or Tazorac (tazarotene)

Some people find benzoyl peroxide a beneficial product since it is conveniently available without a prescription. It is also often combined with an antibiotic, retinoid, or Aczone.

Antibiotics applied to the skin are another option, but, usually, these aren’t prescribed alone.

Retinoids can be very effective, but they may cause more sensitivity than other options.

One advantage of Aczone is that it might not cause as much sensitivity. With its higher dose, you would only need to use it once a day.

The American Academy of Dermatology recommends Aczone for people with inflammatory type acne, which causes very red and swollen pimples. For unknown reasons, it also may work a little better in women.

 In addition to medication applied to the skin, some options for acne are:

These are usually used in addition to therapies applied directly to the skin. Your healthcare provider will help you work out a regimen of one or more treatments that makes sense for you.

Frequently Asked Questions

  • How quickly will Aczone work?

    How quickly Aczone works can vary, but you might not notice improvement for a few weeks. Don’t quit using it if you haven’t seen improvement by then. If your acne is still bad after 12 weeks, you’ll probably want to talk to your healthcare provider about another option.

  • Is Aczone expensive?

    The cost of Aczone can depend on your insurance plan. Aczone can be more expensive than some other options for acne. Benzoyl peroxide and antibiotics applied to the skin might be less pricey. Talk to your healthcare provider if cost is a concern for you.

  • What are the side effects of Aczone?

    Potential skin irritation is the most common side effect of Aczone. Very rarely, a serious problem called methemoglobinemia might occur. See a healthcare provider right away if you notice very pale skin and shortness of breath after you start using Aczone.

  • How does Aczone work?

    Scientists are still learning about how Aczone works. They believe that Aczone’s effectiveness is related to its ability to reduce inflammation, which is particularly helpful for inflammatory acne. Aczone also kills some types of bacteria, which may be why it works for some people.

  • Can I use Aczone with other acne treatments?

    Yes, your healthcare provider may recommend that you use Aczone and other prescription or over-the-counter products for acne. Some people’s acne responds better to these sorts of combination treatments. However, it’s best not to combine treatments without talking to a skin-care professional first. Some combinations work better and are less likely to cause side effects than others.

How Can I Stay Healthy While Taking Aczone?

If you are interested in trying Aczone, you probably want to reduce your symptoms from acne. Taking an active role in managing and coping with this issue can help give you more confidence.

Aczone is a very safe acne treatment, but there are many others. Have patience as you are trying to figure out what works for you. It can take weeks to see if a given medication or combination of medication is successful.

You’ll have the best chance of fully addressing the problem by following your treatments consistently. With medical guidance, you can keep trying until you find what works for you.

Medical Disclaimer

Verywell Health's drug information is meant for educational purposes only and is not intended as a replacement for medical advice, diagnosis, or treatment from a healthcare professional. Consult your doctor before taking any new medication(s). IBM Watson Micromedex provides some of the drug content, as indicated on the page.

6 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Food and Drug Administration. Aczone (dapsone) gel 7.5%.

  2. Wozel G, Blasum C. Dapsone in dermatology and beyond. Arch Dermatol Res. 2014;306(2):103-124. doi:10.1007/s00403-013-1409-7

  3.  Food and Drug Administration. Aczone (dapsone) gel 5.0%.

  4. Thiboutot DM, Kircik L, McMichael A, et al. Efficacy, safety, and dermal tolerability of dapsone gel, 7.5% in patients with moderate acne vulgaris: A pooled analysis of two phase 3 Trials. J Clin Aesthet Dermatol. 2016 Oct;9(10):18-27.

  5. Mahmood N, Khan MU, Haq IUL, et al. A case of dapsone induced methemoglobinemia. J Pharm Policy Pract. 2019;12:22. doi:10.1186/s40545-019-0185-y

  6. Zaenglein AL, Pathy AL, Schlosser BJ, et al. Guidelines of care for the management of acne vulgaris. J Am Acad Dermatol. 2016 May;74(5):945-73.e33. doi:10.1016/j.jaad.2015.12.037