What should I watch for?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. Visit your doctor or health care professional for regular checks on your progress. This medicine needs careful monitoring. Do not stop taking except on your doctor's advice.
Your vision and blood may be tested before and during use of this medicine. Tell your doctor or health care professional right away if you have any change in your eyesight. It is recommended that you receive a complete eye exam about every 6 months.
Wear a medical ID bracelet or chain, and carry a card that describes your disease and details of your medicine and dosage times.
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.
The use of this medicine may increase the chance of suicidal thoughts or actions. Pay special attention to how you are responding while on this medicine. Any worsening of mood, or thoughts of suicide or dying should be reported to your health care professional right away.
Women who become pregnant while using this medicine may enroll in the North American Antiepileptic Drug Pregnancy Registry by calling 1-888-233-2334. This registry collects information about the safety of antiepileptic drug use during pregnancy.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Decrease in the frequency of urination
decrease in the urine volume
difficulty with passing urine (dribbling)
shakiness in the legs, arms, hands, or feet
Bloating or swelling of the face, arms, hands, lower legs, or feet
blood in the urine
burning while urinating
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
general feeling of discomfort or illness
muscle twitching or jerking
rapid weight gain
rhythmic movement of the muscles
tingling of the hands or feet
unusual tiredness or weakness
unusual weight gain or loss
Incidence not known
black, tarry stools
change in consciousness
difficult or labored breathing
loss of consciousness
pain in the lower back or side
pinpoint red spots on the skin
sores, ulcers, or white spots on the lips or in the mouth
tightness in the chest
unusual bleeding or bruising
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
clumsiness or unsteadiness
dizziness or lightheadedness
feeling of constant movement of self or surroundings
sensation of spinning
sleepiness or unusual drowsiness
Absence of or decrease in the body movement
acid or sour stomach
changes in patterns and rhythms of speech
confusion about identity, place, and time
difficulty having a bowel movement (stool)
difficulty with swallowing
feeling that others are watching you or controlling your behavior
feeling that others can hear your thoughts
feeling, seeing, or hearing things that are not there
lack or loss of strength
loss of appetite
loss of memory
muscle aches and pains
problems with speech or speaking
severe mood or mental changes
stomach discomfort, upset, or pain
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.