Click on a term in the list below to see an explanation of what it means.
An unwanted effect caused by a drug, especially on a tissue or organ system other than the effect sought by taking the medication. Any medication can cause side effects. Some side effects can happen at the start of taking antiepileptic drugs, while the body is adjusting to them and may lessen or disappear completely over time (called Short-Term Side Effects). More troublesome side effects can happen when certain antiepileptic drugs are taken for a long time (called Long-Term Side Effects).