Phenobarbital injection, or phenobarbital injection, is effective in children with epilepsy and other conditions, and should be used in accordance with medical advice. Phenobarbital injection has a depressant effect on the central nervous system, with hypnotic, sedative, anticonvulsant and antiepileptic effects, and an anesthetic effect when used in high doses. It can be used for epilepsy in children or adults, and is chosen when amitraz, phenytoin sodium, and valproate are ineffective. It is also used for convulsions due to other disorders, and for administration before anesthesia. This product is effective in the above conditions, but there are individual differences in efficacy due to factors such as individual sensitivity to the drug and different medical conditions. Adverse reactions to this product include drowsiness, headache, vertigo, malaise, dysphoria, rash, exfoliative dermatitis, jaundice, osteomalacia, arthralgia, megaloblastic anemia, tolerance and dependence, and other adverse reactions. The drug is contraindicated in hepatic and renal insufficiency, porphyrias, respiratory dysfunction, hypersensitivity to the product.