Medically reviewed by Drugs.com. Last updated on Mar 30, 2022.
The Mycelex brand name has been discontinued in the U.S. If generic versions of this product have been approved by the FDA, there may be generic equivalents available.
Commonly used brand name(s)
In the U.S.
- Clotrim Antifungal
- Cruex Prescription Strength
- Lotrimin AF
Available Dosage Forms:
Therapeutic Class: Antifungal
Chemical Class: Imidazole
Uses for Mycelex
Clotrimazole topical preparations are used to treat fungus infections on the skin.
This medicine is available both over-the-counter (OTC) and with your doctor's prescription.
Before using Mycelex
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
This medicine has been tested in children and, in effective doses, has not been shown to cause different side effects or problems than it does in adults.
Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults. Although there is no specific information comparing use of topical clotrimazole in the elderly with use in other age groups, this medicine is not expected to cause different side effects or problems in older people than it does in younger adults.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Interactions with food/tobacco/alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Proper use of Mycelex
This section provides information on the proper use of a number of products that contain clotrimazole. It may not be specific to Mycelex. Please read with care.
Apply enough clotrimazole to cover the affected and surrounding skin areas, and rub in gently.
Keep this medicine away from the eyes.
When clotrimazole is used to treat certain types of fungus infections of the skin, an occlusive dressing (airtight covering, such as kitchen plastic wrap) should not be applied over the medicine. To do so may cause irritation of the skin. Do not apply an occlusive dressing over this medicine unless you have been directed to do so by your doctor.
To help clear up your infection completely, it is very important that you keep using this medicine for the full time of treatment , even if your symptoms begin to clear up after a few days. Since fungus infections may be very slow to clear up, you may have to continue using this medicine every day for several weeks or more. If you stop using this medicine too soon, your symptoms may return. Do not miss any doses .
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 forms (cream, lotion, and solution):
- Fungal infections (treatment):
- Adults and children—Use two times a day, morning and evening.
- Fungal infections (treatment):
If you miss a dose of this medicine, apply it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Precautions while using Mycelex
If your skin problem does not improve within 4 weeks, or if it becomes worse, check with your doctor.
Mycelex side effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
- Skin rash, hives, blistering, burning, itching, peeling, redness, stinging, swelling, or other sign of skin irritation not present before use of this medicine
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
More about Mycelex (clotrimazole topical)
- Side effects
- Dosage information
- During pregnancy or Breastfeeding
- Drug class: topical antifungals
- Latest FDA Alerts (1)
- Other brands
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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.