Compound phenylnitrosamine tablets are oral drugs, usually, adults can drink 4 ~ 5 tablets at a time, need to take 3 times a day, specific should follow the doctor’s advice to take, children need to reduce the amount of discretion. Compound phenylnitrosamine tablets are compound preparations containing phenobarbital, nitrazepam, chlorpheniramine maleate, vitamin B6, and sheep brain powder. Compound phenylnitrosamine tablets belong to the antiepileptic drugs, mainly used for single conventional antiepileptic drug treatment is ineffective in intractable epileptic grand mal seizures. Adverse reactions such as drowsiness, weakness, headache, dizziness, nausea, constipation and so on may occur during the period of taking Cotrimoxazole Phenylnitramine Tablets. When taking this drug, you need to pay attention to the liver and kidney insufficiency of people with caution, after taking the drug should not drive a vehicle, operate machinery or work at height, and should not drink alcohol during the drug. In addition, leukopenia, myasthenia gravis, allergic to phenobarbital and benzodiazepines are prohibited to compound phenylnitrosamine tablets. Patients are advised to consult a professional doctor before taking the drug to avoid adverse consequences.