Summary: This study primarily aims to assess the efficacy and safety of zonisamide when used as an adjunctive therapy for focal epilepsy. The main questions it aims to answer are: 1. Does the frequency of epileptic seizures decrease after oral zonisamide， and does it improve cognitive function? 2. Are there any treatment-emergent adverse events associated with oral administration of zonisamide?

Summary: A phase II randomized, double-blind, placebo-controlled clinical trial (RCT) to evaluate the ability of zonisamide (ZON) to decrease alcohol use among treatment-seeking adults with an alcohol use disorder (AUD).

Summary: Investigators aim to compare the effect of zonisamide versus topiramate in migraine by assessing the absolute reduction in MMD in each group, the percentage of patients who achieved ≥ 50% reduction in the monthly headache days frequency compared to the baseline frequency