(MA fe nide)

Brand Names: U.S.

  • Sulfamylon

Is it safe for my child to take this drug?

  • Not if your child has an allergy to mafenide or any other part of this drug.
  • Be sure to let the doctor know if your child has any allergies or side effects to drugs, foods, or dyes. Make sure to tell about the allergy and what signs your child had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • Not if your child is younger than 3 months of age.

Why does my child need this drug?

  • It is used to treat burns.

How is this drug given?

  • Your doctor may put on the skin.
  • If using at home:
  • Do not give by mouth. Use on your child's skin only. Keep out of your child's mouth, nose, and eyes (may burn).
  • Cream:
  • Wear special gloves while putting this drug on.
  • Put a thin layer on the affected part and rub in gently.
  • Put on as you have been told, 1 or 2 times a day.
  • Cover the burn parts with cream at all times.
  • You may cover with a thin dressing if told to do so by your doctor.
  • Powder:
  • Mix powder with sterile water or sodium chloride until it melts.
  • Put liquid on the gauze covering the burn.
  • Put liquid on every 4 to 8 hours or as you have been told by your doctor to keep the gauze wet.

How long does this drug take to work?

  • It may take a few days to see the full effect.

What do I do if my child misses a dose?

  • Give a missed dose as soon as you think about it.
  • If it is close to the time for your child's next dose, skip the missed dose and go back to your child's normal time.
  • Do not change the dose or stop your child's drug. Talk with your child's doctor.

What safety measures do I need to take when my child is using this drug?

  • If your child has kidney disease, talk with the doctor.
  • If your child has lung disease, talk with the doctor.
  • Be careful if your child has G6PD deficiency. Anemia may happen.
  • Check all drugs your child is taking with your child's doctor. This drug may not mix well with some other drugs.
  • Keep a list of all your child's drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child's doctor.

What are some side effects of this drug?

  • Rash.
  • Itching.
  • Pain or burning where the drug was used.
  • Anemia may rarely happen.
  • Fungal infection (rarely).

When do I need to call my child's doctor?

  • If any of this news causes you to be worried, any of the unwanted side effects happen, or if your child is not better after taking this drug.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
  • If your child shows signs of a very bad reaction, call your child's doctor or the ER right away. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; swelling of face, lips, tongue, or throat; or if your child is not acting normal.
  • If your child has trouble breathing.
  • If your child has bleeding problems.
  • If your child has very bad skin irritation.
  • If your child gets a rash.
  • If your child’s health problem does not get better or if you believe your child’s health problem is worse.

How do I store and/or throw out this drug?

  • Store powder packets and cream at room temperature.
  • Liquid:
  • Store liquid in a closed container.
  • Throw away any part of the opened liquid container not used after 48 hours.
  • Throw away any part of the unopened liquid container not used after 28 days.

General drug facts

  • If your child has a very bad allergy, he/she needs to wear an allergy ID at all times.
  • You may get this drug by drug order only. If there are refills, call your pharmacy. If your child does not have refills left, you may need to call your child's doctor.
  • Get rid of this drug when your child no longer needs it or if the drug is outdated.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, pharmacist, or other health care provider.
  • In Canada, take any unused drugs to the pharmacy. Also, visit to learn about the right way to get rid of unused drugs. to learn about the right way to get rid of unused drugs.
  • Do not share your child's drug with others and do not give anyone else's drug to your child.
  • Keep all drugs out of the reach of children and pets.
  • Keep a list of all your child's drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child's doctor.
  • These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
  • Talk with the doctor before giving your child any new drug, including OTC, natural products, or vitamins.
  • If you do not use a drug the right way, it may not be safe. Follow what your child’s doctor tells you.