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Griseofulvin, Ultramicrocrystalline Oral tablet

It is used to treat certain kinds of fungal or yeast infections of the skin, hair, or nails

Generic Name: griseofulvin  |  Brand Name: Fulvicin P/G

Brand Names: Grisactin 500, Grifulvin V, Fulvicin P/G, Griseofulvin, Ultramicrocrystalline, Grisactin 250, Griseofulvic, Griseofulicin, Grisactin Ultra, Gris-PEG

What is this medicine?

GRISEOFULVIN (gri see oh FUL vin) is an antifungal medicine. It is used to treat certain kinds of fungal or yeast infections of the skin, hair, or nails.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • liver disease
  • porphyria
  • systemic lupus erythematosus (SLE)
  • an unusual or allergic reaction to griseofulvin, penicillin, other foods, dyes or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take with or without food. Take your medicine at regular intervals. Do not take your medicine more often than directed. Do not skip doses or stop your medicine early even if you feel better. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for selected conditions, precautions do apply.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

  • barbiturate medicines for sleep or seizures
  • female hormones, like estrogens or progestins and birth control pills
  • warfarin

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check ups. Tell your doctor or health care professional if your symptoms do not improve or if they get worse. Some fungal infections need many weeks or months of treatment to cure.

Follow your doctor's instructions on how to care for the infection. You may need to use another medicine on your skin while you are taking this medicine.

This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.

Birth control pills may not work properly while you are taking this medicine. Talk to your doctor about using an extra method of birth control.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash or hives, swelling of the face, lips, or tongue
  • confusion
  • dark urine
  • fever or infection
  • loss of appetite
  • mouth sores, white patches
  • skin rash, redness, blistering, or peeling of skin
  • tingling or numbness in the hands or feet
  • trouble breathing
  • unusually weak or tired
  • yellowing of skin or eyes

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • difficulty sleeping
  • dizziness
  • headache
  • nausea, vomiting
  • stomach pain

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.


Last Updated: April 28, 2009
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