ZEN Retard 300 Tablet ER is an anticonvulsant medication primarily used for treating epilepsy seizures and trigeminal neuralgia facial nerve pain The active ingredient in this medicine is Carbamazepine which works by reducing the electrical impulses and excessive firing of nerve impulses that cause seizures By regulating the abnormal nerve activity in the brain this medication helps in controlling and preventing seizures It is important to take ZEN Retard 300 Tablet ER regularly either with or without food at the same time every day The dosage and frequency of the medication will be determined by your doctor based on your specific condition and symptoms It is crucial to follow your doctors instructions to ensure you receive the appropriate amount of medication to effectively manage your symptoms Inform your doctor about all the medications you are currently taking as certain drugs may interact with ZEN Retard 300 Tablet ER and affect its effectiveness or increase the risk of side effects Regular monitoring through blood tests such as a complete blood count CBC may be recommended before starting the treatment and periodically thereafter to assess your progress and ensure the medication is safe for you While most side effects of this medication are generally not severe it is important to notify your doctor immediately if you experience a skin rash feelings of depression or any thoughts of selfharm These symptoms should be addressed promptly to ensure your wellbeing and to determine if any adjustments to your treatment plan are necessary