Trileptal Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:Most Common: Dizziness, sleepiness, double vision (diplopia), fatigue, nausea, vomiting, ataxia, vision problems, abdominal pain, tremor, upset stomach (dyspepsia), vertigo (a sense that you are going to fall, even when standing still)
Less Common: Constipation, insomnia, nasal inflammation (rhinitis), nervousness, upper respiratory infection, abnormal coordination
Always notify your doctor immediately if any of the following side effects appear:
Less Common or Rare: An allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives); symptoms of hyponatremia (includes dry mouth, increased thirst and others); or serious skin reaction (see Stevens-Johnson Syndrome)
Additional Warning Common to All Anticonvulsants
All AEDs (also known as anticonvulsants) are required to carry a warning regarding the increased risk of suicidal ideation or suicidal behavior. Although the overall risk is low, patients taking these drugs in clinical trials had about twice the risk as of those taking placebo.Other side effects not listed above may also occur in some patients. If you notice any other possible side effects when taking Trileptal, check with your doctor.
Disclaimer: This is not intended to be all-inclusive or to replace information provided by your doctor or with the prescription from the manufacturer.

