You should not drink alcohol after taking painkillers. Painkiller is a kind of antipyretic and analgesic drug, which can be used for the treatment of mild to moderate pain and fever, etc. It is forbidden for those who are allergic to finasteride, aminopyrine, caffeine, or phenobarbital, etc. Adverse reactions such as rash, fever, profuse sweating, vomiting, and stomatitis may occur after the use of the drug. The aminopyralid contained in painkillers will stimulate the gastric mucosa, and alcohol will also stimulate the gastric mucosa, and the interaction between the two may cause stomach pain and other uncomfortable symptoms; in addition, alcohol may affect the efficacy of the drug, so that the therapeutic effect is reduced. Therefore, you should not drink alcohol after taking painkillers. Patients who need to use painkillers should use the drug under the guidance of a doctor.