Precautions While Using This Medicine

Your doctor should check your progress at regular visits to make sure that griseofulvin does not cause unwanted effects.

Oral contraceptives (birth control pills) containing estrogen may not work properly if you take them while you are taking griseofulvin. Unplanned pregnancies may occur. You should use a different or additional means of birth control while you are taking griseofulvin and for one month after stopping griseofulvin . If you have any questions about this, check with your health care professional.

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. Therefore, if you have this reaction, do not drink alcoholic beverages while you are taking this medicine, unless you have first checked with your doctor.

This medicine may cause some people to become dizzy or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do other things that could be dangerous if you are dizzy or are not alert . If these reactions are especially bothersome, check with your doctor.

Griseofulvin may cause your skin to be more sensitive to sunlight than it is normally. Exposure to sunlight, even for brief periods of time, may cause a skin rash, itching, redness or other discoloration of the skin, or a severe sunburn. When you begin taking this medicine:

• Stay out of direct sunlight, especially between the hours of 10:00 a.m. and 3:00 p.m., if possible.
• Wear protective clothing, including a hat. Also, wear sunglasses.
• Apply a sun block product that has a skin protection factor (SPF) of at least 15. Some patients may require a product with a higher SPF number, especially if they have a fair complexion. If you have any questions about this, check with your health care professional.
• Apply a sun block lipstick that has an SPF of at least 15 to protect your lips.
• Do not use a sunlamp or tanning bed or booth.

If you have a severe reaction from the sun, check with your doctor .