This drug may cause some people to have blurred vision, double vision, clumsiness or unsteadiness, or to become dizzy, drowsy, or have trouble in thinking. Make sure you know how you react to this drug before you drive, use machines, or do anything else that could be dangerous if you are not alert, well-coordinated, or able to think or see well.
Check with your family doctor immediately if you experience a decrease in vision, blurred vision, double vision or pain around the eyes.
Oral contraceptives - birth control pills containing estrogen may not work properly if you take them while you are taking topiramate. Unplanned pregnancies may occur. You must use a various or additional means of birth control while you are using topiramate. If you have any questions about this, check with your family doctor or pharmacist.
It is important that you drink plenty of fluids every day during therapy with topiramate to help prevent kidney stones from forming.