Drinking large amounts of water at one time can easily produce a feeling of fullness and may trigger seizures, so people with epilepsy should consciously control the amount of water they drink. Drinking large amounts of water can cause patients to urinate more often in a very short period of time. In general, this changes the concentration of antiepileptic drugs in the blood, which is equivalent to a decrease in the amount of medication used. At the same time, excessive water consumption can cause the stomach to become overly dilated, and stimulation of the stomach nerves may induce seizures. In addition, frequent urinary stimulation may also be a factor in triggering seizures.