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Grifulvin (Griseofulvin)

Last updated on November 21st, 2021

Generic name: Griseofulvin

Brand names: Grifulvin, Fulvicin U/F, Grisactin 500, Grifulvin V, Fulvicin P/G, Gris-PEG, Grisactin Ultra

General Information

Grifulvin is a popular antifungal medication that has been labeled as antibiotic. It prescribed for the treatment of many different fungal infections such as the skin, nails, hair infections, including ringworm and jock itch and athlete’s foot. It will not work for flu, colds or viral infections.

Grifulvin augments sensitivity to sunlight, and severe burning may occur. Use a sunscreen and wear protective clothing when exposure to the sun is unavoidable. The combination of alcohol and Grifulvin may cause flushing and a fast heart rate.

Your doctor may prescribe this remedy for other purposes. Contact your physician if you need to learn more information about this drug.

Don’t stop treatment with Grifulvin earlier than it was prescribed by your doctor even if you notice improvements of your condition. Stopping the medication too early may worsen your condition. Be careful about doing dangerous tasks, driving, operating machinery or climbing until you are aware how this drug affects you. Don’t drink alcohol. Always contact a medic before giving Grifulvin to a child.

What symptoms or conditions should I report to a doctor before I take this medicine?

It is important to report to a doctor if you have or had the following conditions:

  •     heart disorders (such as heart rhythm problems)
  •     porphyria
  •     systemic lupus erythematosus (SLE)
  •     liver or kidney disease
  •     allergy to griseofulvin, penicillin, other preservatives, medicines, dyes, foods
  •     seizures or epilepsy
  •     diabetes
  •     diarrhea, a stomach infection
  •     pregnancy, breastfeeding or planning to become pregnant

How to take Grifulvin?

Note: This remedy was prescribed to you only. Do not share this medicament with others. Follow strictly your doctor’s prescription. Do not take more or longer than your doctor recommended.

Grifulvin is offered in the tab, capsule, and liquid form to take orally. It should be taken one time per day or 2 to 4 times a day, at regular intervals.

This medicament should be accompanied by a full glass of water. It is important to drink several glasses of water each day while you are taking Grifulvin to protect your kidneys. You may take it either with or without food. In order to underestimate stomach irritation and help your body absorb the drug is possible to combine with meals.

The tablets, capsules should be swallowed whole. Do not open (for capsules), crush, chew or break them. Shake the liquid well before each use to mix the medicine evenly. Use a specially marked measuring spoon or medicine cup to be sure of the correct dose.

The amount of Grifulvin is based on individuals and the diseases being treated. It is obviously to appeal to your medic before to take Grifulvin. Follow your physician instructions carefully.

What should you do if you miss a dose of Grifulvin?

In case you forgot to take the dose, take it at your earliest opportunity. Never double your dose if it is almost time for your next dose. Take only one dose at once.

What should you do if you overdose of Grifulvin?

Taking any medicine in excess you can have serious consequences for your health. If you feel an overdose, apprise your health care provider straightway. Overdose of Grifulvin may cause headache, confusion, vomiting, numbness and tingling, diarrhea or nausea.


  •     barbiturate medicines for sleep or seizures
  •     female hormones, (estrogens or progestins)
  •     birth control pills probenecid
  •     warfarin

This list of interactions may be not complete. Provide your medical practitioners entire list of medicines, herbs, dietary supplements or non-prescription drugs you take. Moreover tell them whether you drink alcohol, use illegal drugs or smoke. Particular items may interact with your drug.

Which side effects can I perceive from this remedy?

  •     Allergic reaction (skin rash or swelling; itching; hives; swelling of your throat, tongue, lips or face; difficulty breathing)
  •     Problems with breathing
  •     Difficulty urinating (urinary retention), dark urine
  •     Fever, chills
  •     Fatigue, faintness
  •     Unusual bleeding or bruising
  •     Redness, blistering, peeling or loosening of the skin, including inside the mouth
  •     Nausea, vomiting
  •     Headache, dizziness, ringing in your ears or hearing loss
  •     Indigestion, or upset stomach, bloating, stomach gas, pain or cramps
  •     Diarrhea
  •     Fast/pounding/irregular heartbeat (palpitations)
  •     Loss of appetite
  •     Thirst or dry mouth, nose, or throat

If these persist or worsen, make known to your medical practitioner straightway. This is not a whole list of side effects and others may occur. If you have other reactions not listed above, contact your doctor or pharmacist.

How should Grifulvin be stored?

Grifulvin should be stored at room temperature, between 15 and 30 degrees C (59 and 86 degrees F), in a tightly closed container. Protect from moisture, direct heat, and light. Do not store in the bathroom or near a sink. Keep Grifulvin out of the reach of children and away from animals.

Warning: Before taking the drug you need to consult your doctor.

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