Commonly used brand name(s):
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antifungal
Griseofulvin belongs to the group of medicines called antifungals. It is used to treat fungus infections of the skin, hair, fingernails, and toenails. griseofulvin may be taken alone or used along with medicines that are applied to the skin for fungus infections.
Griseofulvin is available only with your doctor's prescription.
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 griseofulvin, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to griseofulvin 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.
griseofulvin has been tested in a limited number of children 2 years of age or older. In effective doses, the medicine 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 griseofulvin in the elderly with use in other age groups, griseofulvin 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.
Using griseofulvin 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.
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.
Using griseofulvin with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use griseofulvin, or give you special instructions about the use of food, alcohol, or tobacco.
The presence of other medical problems may affect the use of griseofulvin. Make sure you tell your doctor if you have any other medical problems, especially:
Griseofulvin is absorbed best when it is taken with a high fat meal, such as a cheeseburger, whole milk, or ice cream. Tell your doctor if you are on a low-fat diet.
Griseofulvin is best taken with or after meals, especially fatty ones (for example, whole milk or ice cream). This lessens possible stomach upset and helps to clear up the infection by helping your body absorb the medicine better. However, if you are on a low-fat diet, check with your doctor.
For patients taking the oral liquid form of griseofulvin :
To help clear up your infection completely, keep taking griseofulvin for the full time of treatment, even if you begin to feel better after a few days. Do not miss any doses.
The dose of griseofulvin 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 griseofulvin. 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.
If you miss a dose of griseofulvin, take 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. Do not double doses.
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.
Your doctor should check your progress at regular visits to make sure that griseofulvin does not cause unwanted effects.
Oral contraceptives (birth control pills) containing estrogen may not work properly if you take them while you are taking griseofulvin. Unplanned pregnancies may occur. You should use a different or additional means of birth control while you are taking griseofulvin and for one month after stopping griseofulvin. If you have any questions about this, check with your health care professional.
Griseofulvin may increase the effects of alcohol. If taken with alcohol it may also cause fast heartbeat, flushing, increased sweating, or redness of the face. Therefore, if you have this reaction, do not drink alcoholic beverages while you are taking griseofulvin, unless you have first checked with your doctor.
griseofulvin may cause some people to become dizzy or less alert than they are normally. Make sure you know how you react to griseofulvin before you drive, use machines, or do other things that could be dangerous if you are dizzy or are not alert. If these reactions are especially bothersome, check with your doctor.
Griseofulvin may cause your skin to be more sensitive to sunlight than it is normally. Exposure to sunlight, even for brief periods of time, may cause a skin rash, itching, redness or other discoloration of the skin, or a severe sunburn. When you begin taking griseofulvin:
If you have a severe reaction from the sun, check with your doctor.
Griseofulvin has been shown to cause liver and thyroid tumors in some animals. You and your doctor should discuss the good griseofulvin will do, as well as the risks of taking it.
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:Less common
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
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.
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