Without a Prescription
Griseofulvin is prescribed for the treatment of the following ringworm infections:
- Ringworm of the scalp;
- Ringworm of the nails;
- Ringworm of the groin and thigh;
- Ringworm of the body;
- Barber's itch (inflammation of the facial hair follicles);
- Athlete's foot;
Because Griseofulvin is effective for only certain types of fungal infections, before treatment your doctor may perform tests to identify the source of infection.
Although some improvement may appear within a few days, you need to take Griseofulvin for an extended period.
To clear up your infection completely, continue taking Griseofulvin as prescribed until your doctor tells you to stop.
Griseofulvin side effects that you should report to your health care professional or doctor as soon as possible:
More common side effects may include:
- Skin rashes;
Less common side effects may include:
- Upper abdominal pain;
- Oral thrush (mouth inflammation);
- Inability to fall or stay asleep;
- Impairment of performance of routine activities;
Rare side effects may include:
- Tingling sensation in hands and feet;
- Menstrual irregularities;
- Shedding of areas of skin;
Griseofulvin is contraindicated if you have any of the following conditions:
- If you are being treated with Griseofulvin for an extended period of time;
- If you are sensitive to or allergic to penicillin;
- If you are sensitive to or have ever had an allergic reaction to Griseofulvin or other drugs of this type;
- If you develop lupus erythematosus (a form of rheumatism) or a lupus-like condition;
- If you have liver damage or porphyria (an inherited disorder of the liver or bone marrow);
Do not take Griseofulvin with any of the following drugs:
- Oral contraceptives;
- Blood-thinning drugs such as coumadin;
- Barbiturates such as phenobarbital;
The usual treatment periods for various ringworm infections are:
Ringworm of the scalp--4 to 6 weeks
Athlete's foot--4 to 8 weeks
Ringworm of the body--2 to 4 weeks
The usual treatment period, depending on the rate of growth, for ringworm of the fingernails is at least 4 months and for ringworm of the toenails at least 6 months.
A single daily dose is effective in children with ringworm of the scalp.
This means that children weighing 35 to 60 pounds will take 125 to 187.5 milligrams a day, and children weighing more than 60 pounds will take 187.5 to 375 milligrams a day.
The usual dosage is 3.3 milligrams per pound of body weight per day.
No dosage has been established for children 2 years of age and under.
Athlete's Foot, Ringworm of the Nails
The usual dosage is 750 milligrams a day divided into smaller doses, as determined by your doctor.
Ringworm of the Body, Groin and Thigh, Scalp
The usual dosage is 375 milligrams a day taken as a single dose or divided into smaller doses, as determined by your doctor.
Any medication taken in excess can have dangerous consequences.
If you suspect an overdose of Griseofulvin, seek emergency medical treatment immediately.