Make sure to tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.
Epilepsy is a brain disorder caused by recurring, brief changes in the brain's electrical system. These changes in brain activity can lead to a seizure(see Epilepsy Symptoms).
It is not known exactly how tiagabine works to prevent partial seizures in people with epilepsy. It may work by enhancing the effects of gamma-aminobutyric acid (GABA), a brain chemical that is naturally calming. GABA helps to slow down the brain's electrical system, thereby controlling seizures. Tiagabine also helps to keep GABA in the parts of the brain where it is active, preventing it from being removed and enhancing its effects.