Zen Retard 300 Tablet 10 s belongs to a group of medicines called anticonvulsants or anti epileptics used to treat epilepsy fits and trigeminal neuralgia pain in the face s nerves Epilepsy is a neurological disorder in which there is a sudden rush of electric impulse electric activity in the brain As a result the brain s electrical rhythms become imbalanced resulting in recurrent episodes of seizures or fits Trigeminal neuralgia is a condition which affects the trigeminal nerve that carries sensations from face to the brain Zen Retard 300 Tablet 10 s contains Carbamazepine that reduces the electrical impulses and subsequent firing of the nerve impulses that cause fits Thus Zen Retard 300 Tablet 10 s decreases the excessive and abnormal nerve activity in the brain thereby controlling seizures