Undecylenic Acid and Derivatives Powder

• It is used to treat fungal infections of the skin.

• Tell all of your health care providers that you take undecylenic acid and derivatives powder. This includes your doctors, nurses, pharmacists, and dentists.
• This medicine may cause harm if swallowed. If this medicine is swallowed, call a doctor or poison control center right away.
• Talk with the doctor before giving undecylenic acid and derivatives powder to a child younger than 2 years of age.
• Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this medicine while you are pregnant.
• Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.

Use undecylenic acid and derivatives powder as ordered by your doctor. Read all information given to you. Follow all instructions closely.

• Do not take this medicine by mouth. Use on your skin only. Keep out of your mouth, nose, and eyes (may burn).
• Wash your hands before and after use. Do not wash your hands after use if putting this on your hand.
• Clean affected part before use. Make sure to dry well.
• Sprinkle powder over affected skin.
• Do not use to treat diaper rash.
• Do not use coverings (bandages, dressings, make-up) unless told to do so by the doctor.
• For athlete's foot, be sure to get undecylenic acid and derivatives powder in the areas between the toes.
• Use as you have been told, even if your signs get better.
• To gain the most benefit, do not miss doses.

What do I do if I miss a dose?

• Put on a missed dose as soon as you think about it.
• If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
• Do not put on 2 doses at the same time or extra doses.

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Skin irritation.

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.