Zonegran is an anti-epileptic which helps to calm the brain when it gets excited in epilepsy, this can also have a beneficial effect with headache as the brain can become excited with headache as well.
It is probably more serious for an epileptic to reduce this med too quick, and could bring your headaches on very strong if stopped too rapidly. Please wait for advice from your Neuro about any increase/decrease with any medication especially things like this.
Co-Moderator of the Migraine/Headache Forum
DX: Hemicrania Continua, Chronic Migraine, IBS, Allergic Rhinitis and Heart Murmur
Meds: Imigran Injections, High Flow Oxygen, Mebeverine, Lansoprazole, Nasonex and Clarityn