It is used to help prevent headaches when it is taken on a regular basis
What should I watch for while using this medicine?If you take this medicine to prevent headaches, check with your doctor if you do not get relief from this medicine.
Avoid extreme heat or cold. This medicine can stop you sweating and increase your body temperature. It can also make your body unable to stand extreme cold. Avoid hot baths and saunas. Be careful about exercising especially in hot weather. Dress warmly in cold weather and do not stay out long in the cold.
Stay out of bright light and wear sunglasses if this medicine makes your eyes more sensitive to light.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
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. Also, immediately call your doctor if you become pregnant. You must not take this medicine if you are pregnant.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
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:
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):