The adverse reactions observed during clinical studies conducted in epilepsy (adjunctive and monotherapy) and neuropathic pain have been provided in a single list below by class and frequency (very common (> 1/ 10), common (> 1/ 100 ,< 1/10), uncommon (> 1/ 1000 ,< 1/100) and rare (> 1/10 ,000; < 1/1,000).