This medicine may cause difficulty in reading or other vision problems, especially at night. It may also cause some people to become dizzy or lightheaded. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert or able to see well. If these reactions are especially bothersome, check with your doctor.
This medicine may cause you to sweat more than is usual. If you do, it is important that you drink extra liquids to offset this sweating so you do not lose too much fluid and become dehydrated. Check with your doctor if you are not sure how much extra liquid to drink or if you cannot drink as much liquid as you should.