It is very important that your doctor check the progress of you or your child at regular visits to see if the medicine is working properly. Blood tests may be needed to check for unwanted effects.
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using this medicine, tell your doctor right away. Your doctor may want you to join a pregnancy registry for pregnant patients taking a seizure medicine.
This medicine may cause some people to have blurred vision, double vision, clumsiness or unsteadiness, or to become dizzy, drowsy, or have trouble in thinking or speaking. Make sure you know how you react to this medicine before you drive, use machines, climbing in high places, swimming, or do anything else that could be dangerous if you are not alert, well-coordinated, or able to think or see well.
This medicine will add to the effects of alcohol and other CNS depressants (medicines that make you drowsy or less alert). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds; prescription pain medicines, or sleep medicines. Check with your doctor before taking any of the above while you are using this medicine.
Check with your doctor immediately if you or your child have a decrease in vision, blurred vision, double vision, or pain around the eyes during and after treatment with this medicine. Your doctor may want you or your child to have your eyes checked by an ophthalmologist (eye doctor).
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 should use a different or additional means of birth control while you are using topiramate. If you have any questions about this, check with your doctor or pharmacist.
This medicine may make you sweat less, causing your body temperature to increase. Use extra care not to become overheated during exercise or hot weather while you are taking this medicine. Overheating may result in heat stroke. Also, hot baths or saunas may make you dizzy or faint while you are taking this medicine.
Topiramate may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. If you, your child, or your caregiver notice any of these side effects, tell your or your child's doctor right away.
This medicine may cause nausea, muscle tremors, fast breathing, problems eating, fast heartbeat, restlessness, and abdominal or stomach pain. Tell your doctor right away if you or your child have any of these symptoms. This may be a sign that you or your child may be having a metabolic acidosis (too much acid in the blood).
This medicine may cause your body temperature to go down especially when taking valproic acid, which is another medicine to control seizures. You may have tiredness, weakness, confusion, and abnormal heartbeat and breathing. Tell your doctor right away if you feel any of these side effects.
This medicine may cause slow growth. If your child is using this medicine, the doctor will need to keep track of your child's height and weight to make sure that your child is growing properly.
Do not stop taking topiramate without checking first with your doctor. Stopping the medicine suddenly may cause your seizures to return or to occur more often. Your doctor may want you to gradually reduce the amount you are taking before stopping completely.
Check with your doctor right away if you or your child are having unusual drowsiness, dullness, tiredness, weakness, or feelings of sluggishness; mental depression or anxiety; nightmares or unusually vivid dreams; or vomiting. These may be symptoms of a serious condition called hyperammonemic encephalopathy.
Check with your doctor right away if you or your child have sudden back pain, abdominal or stomach pain, pain while urinating, or bloody or dark urine. These may be symptoms of kidney stones.
Tell your doctor if your or your child's skin feels like it is burning, crawling, itching, or if you have numbness, prickling, "pins and needles", or tingling feeling after using topiramate.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.