Lamictal is usually taken twice a day. The value of monitoring blood levels of Lamictal is not yet established.
All drugs have side effects.
The most common side effects associated with the use of Lamictal include dizziness, incoordination, sleep problems, headache, double or blurred vision, nausea, vomiting and rash. Most of these symptoms are dose related, and may resolve with a lesser dose. Other rare side effects include abnormal thinking, nervousness and weight gain. Toxic symptoms are symptoms experienced when the blood Lamictal level is too high. Toxic symptoms can include drowsiness, incoordination, slurred speech, dizziness, headache and coma.