Proper Use
Drug information provided by: Merative, Micromedex®
Keep using this medicine for the full treatment time, even if you feel better after the first few doses. Your infection may not clear up if you stop using the medicine too soon.
Keep yourself clean to help control infection and prevent reinfection.
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 (e.g., 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:
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Use a specially marked measuring spoon or other device to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid.
You may swallow the tablets whole or sprinkle the crushed tablets in one tablespoonful of applesauce. Swallow it immediately without chewing.
Dosing
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.
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For oral dosage forms (microsize capsules, tablets, or suspension):
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Treatment of fungus infections of the feet and nails:
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Adults and teenagers—500 milligrams (mg) every 12 hours.
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Children—Dose is based on body weight and must be determined by your doctor. The usual dose is 5 milligrams (mg) per kilogram (kg) (2.3 mg per pound) of body weight every 12 hours, or 10 milligrams (mg) per kilogram (kg) (4.6 mg per pound) of body weight once a day.
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Treatment of fungus infections of the scalp, skin, and groin:
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Adults and teenagers—250 milligrams (mg) every 12 hours or 500 mg once a day.
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Children—Dose is based on body weight and must be determined by your doctor. The usual dose is 5 milligrams (mg) per kilogram (kg) (2.3 mg per pound) of body weight every 12 hours, or 10 milligrams (mg) per kilogram (kg) (4.6 mg per pound) of body weight once a day.
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For oral dosage form (ultramicrosize tablets):
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Treatment of fungus infections:
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Adults—375 milligrams (mg) per day, taken as a single dose or divided in small doses. Some patients may need 750 mg divided in small doses.
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Children 3 years of age and older weighing over 60 pounds—Dose is based on body weight and must be determined by your doctor. The usual dose is 187.5 to 375 mg per day.
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Children 3 years of age and older weighing 35 to 60 pounds—Dose is based on body weight and must be determined by your doctor. The usual dose is 125 to 187.5 mg per day.
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Children up to 2 years of age—Use and dose must be determined by your doctor.
Missed Dose
If you miss a dose of this medicine, 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.
Storage
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.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Portions of this document last updated: Feb. 01, 2024
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