What is GRISEOFULVIN used for
GRISEOFULVIN is used to treat tine, a fungal infection.
GRISEOFULVIN is only used when other antifungal treatments, such as tine creams or powders, have not worked.
GRISEOFULVIN will not work for bacterial or viral infections.
Tine may occur in the skin of the body, scalp, hair or nails. GRISEOFULVIN works by helping newly formed skin, hair and nails to resist attack by fungi. As the new tissue (keratin) grows, the old infected keratin is cast off. That is why it is important to continue treatment until all the old infected tissue is gone.
Ask your doctor (or pharmacist) if you have any questions about why GRISEOFULVIN has been prescribed for you.
GRISEOFULVIN is available only with a doctor’s prescription.
Before you take GRISEOFULVIN
Before taking GRISEOFULVIN, you must tell your doctor:
• If you have ever had an allergic reaction to any of the ingredients listed at the end of this leaflet
• If you are or may become pregnant
• If you are breast-feeding
• If you are planning to father a child
• If you are on a low fat diet
• If you have any other health problems, especially liver disease, lupus (systemic lupus erythematosis) or porphyria (a blood disease)
GRISEOFULVIN may reduce the effectiveness of oral contraceptives. Extra contraceptive precautions (e.g. condom) should be used during GRISEOFULVIN treatment and for a month after stopping GRISEOFULVIN.
GRISEOFULVIN may cause birth defects. It must not be used during pregnancy. If you intend to become pregnant, you should delay pregnancy until one month after stopping GRISEOFULVIN treatment.
GRISEOFULVIN may cause abnormalities in sperm cells. Men should not father children until at least six months after stopping GRISEOFULVIN treatment.
Do not use GRISEOFULVIN if the packaging shows sign of tampering or the seal is broken.
Do not use GRISEOFULVIN after the expiry date printed on the pack has passed.
It may have no effect at all, or worse, it may give an entirely unexpected effect if you use after the expiry date.
Taking other medicines
Tell your doctor if you are taking the following medicines:
• Warfarin (an anticoagulant)
• Oral contraceptives
Tell your doctor (or pharmacist) if you are taking any other medicines.
This includes any that you buy without a prescription from a pharmacy, supermarket or health food shop.
Some medicines may affect the way other’s work. Your doctor or pharmacist can tell you what to do when taking GRISEOFULVIN with other medicines.
How to take GRISEOFULVIN
How much to take
The following information lists the usual dose of GRISEOFULVIN.
Adults – The usual dose is 500 mg per day. For nail infections, your doctor may prescribe up to 1000 mg daily until a response is apparent, at which time the dose may be reduced to 500 mg per day.
Children – The usual dose is 10 mg/kg body weight daily, taken in divided doses.
The dose will depend on the type of treatment required for a patient.
Your doctor will decide the number of doses needed each day and how long you will need to take GRISEOFULVIN. These doses may differ from the usual doses shown in this leaflet.
If your dose is different to that described in this leaflet do not change it unless your doctor tells you to.
How to take it
Follow the instructions given by your doctor and pharmacist and read the label carefully.
If you do not understand the instructions on the box or bottle, ask your doctor or pharmacist.
When to take it
GRISEOFULVIN tablets should always be taken after meals. They will work better if some fat is included in the meal (for example milk or Ice Cream). If you are on a fat reduced diet, you should tell your doctor.
How long to take it
Your doctor will advise you how long you will need to take GRISEOFULVIN.
Generally, hair or skin infections need at least 4 weeks treatment. Infection of the toenails or fingernails may need 6 to 12 months treatment. Treatment should be continued for at least 2 weeks after all signs of the infection have disappeared.
If you forget to take it
If you forget to take GRISEOFULVIN, take it as soon as possible with food. If it is almost time for your next dose, skip the missed dose, and take the next dose at the usual time.
Do not take a double dose to make up for the missed dose.
If you have trouble remembering to take or give GRISEOFULVIN, ask your pharmacist for some hints.
You should follow all advice from your doctor when being treated with this medicine. This information is not intended to replace your doctor’s advice.
If you take too much (overdose)
Telephone your doctor or the Poisons Information Centre (Telephone 13 11 26) for advice or go to Accident and Emergency at the nearest hospital if you think that you or anyone else may have taken too much GRISEOFULVIN. Do this even if there are no signs of discomfort or poisoning.
You may need urgent medical attention.
Keep the telephone numbers of these places handy.
There are unlikely to be any serious problems from an overdose of GRISEOFULVIN.
But you must consult your doctor or Poisons Information Centre.
While you are using GRISEOFULVIN
Things you must do
GRISEOFULVIN can increase the sensitivity of the skin to sunlight. Avoid direct sunlight and artificial UV light. When outside, wear protective clothing, hat and sunglasses, and use a sunblock that is at least SPF15.
Oral contraceptives (birth control pills) containing oestrogen may not work properly if you take them while you are taking GRISEOFULVIN.
If you are taking oral contraceptives, you should use a different or additional means of birth control while you are taking GRISEOFULVIN tablets and until one month after stopping GRISEOFULVIN.
If you become pregnant while you are taking GRISEOFULVIN tell your doctor.
If you are about to start taking any new medicine, tell your doctor and pharmacist that you are taking GRISEOFULVIN.
Tell your doctor if, for any reason, you have not used GRISEOFULVIN exactly as prescribed.
Otherwise, your doctor may think that the medicine was not effective and change your treatment unnecessarily.
Things you must not do
Do not stop taking GRISEOFULVIN until it is finished.
Your infection and symptoms may not clear completely.
Do not give GRISEOFULVIN to anyone else even if his or her symptoms seem similar to yours.
Things to be careful of
GRISEOFULVIN may cause some people to feel drowsy or dizzy. Make sure you know how you react to GRISEOFULVIN before you drive a car, use machinery, or do anything else that could be dangerous if you are dizzy or are not alert.
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. If you have this reaction, do not drink alcoholic beverages without first checking with your doctor.
To avoid reinfection, any clothes, towels, bed linen, shoes, headwear etc. that has come into contact with the affected area, should be cleaned thoroughly or disposed of. Where possible, clothing and linen should be washed with detergent and hot water and dried in the sun. You may use a tinea powder or cream to help reduce the spread of infected clothing and linen.
All medicines, including GRISEOFULVIN, may cause unwanted side effects in some people.
If any of the following side effects are severe or are worrying you, tell your doctor:
• Headache, which may be severe, but usually disappears as treatment is continued
• Tiredness, drowsiness
• Nausea, vomiting or thirst
• Insomnia (trouble in sleeping)
• Heartburn or flatulence (“wind”)
• Skin rash and skin eruptions
If you have any of the following side effects, tell your doctor as soon as possible, as you may need medical attention:
• Mental confusion
• Skin rash, hives or itching
• Soreness or irritation of the mouth or tongue
• Sore, creamy-yellow, raised patches in mouth
• Numbness, tingling, pain or weakness in hands or feet
• Sore throat and fever
• Yellow eyes or skin
• Swelling in the throat
• Menstrual irregularities
GRISEOFULVIN may cause other side effects not listed above. If you have any other side effects, tell your doctor.
Do not be alarmed by this list of possible side effects. You may not experience any of them.
After using GRISEOFULVIN
Keep GRISEOFULVIN where young children cannot reach it.
A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines.
Store GRISEOFULVIN tablets in a dry place below 30°C.
Do not leave GRISEOFULVIN in the car or on windowsills.
Heat and dampness can destroy some medicines.
If your doctor tells you to stop using GRISEOFULVIN or it has passed its expiry date, ask your pharmacist what to do with any GRISEOFULVIN left over.