The main ingredient of Luminal is Phenobarbital, which is an optional drug for children with epilepsy. It usually works fast and can be taken for a long time, but the exact duration of the medication depends on the condition of the disease, and you need to pay attention to the side effects of the drug. Phenobarbital is mainly used for insomnia, anxiety, epilepsy and movement disorders, grand mal and limited seizures. Children with epilepsy can take Phenobarbital for a long period of time if their symptoms are well controlled and there are no obvious side effects, but the exact duration of the medication depends on the condition, and some patients can gradually reduce the dosage or discontinue the medication after a period of time. If Phenobarbital is taken for a long period of time, attention needs to be paid to its adverse reactions, such as drowsiness, ataxia, hyperactivity, allergic skin and mucous membrane damage, and even severe and fatal allergic reactions. Therefore, regular follow-up is required, especially in the first three months after the use of the drug. The drug should be used under medical supervision. The drug is contraindicated in people with liver insufficiency, allergy to the drug, anemia or with asthma, as well as the need to regularly monitor the concentration of the drug in the blood and liver function, and in case of any discomfort go to the hospital.