Drinking alcohol and taking cold medicines carries the risk of causing death. Ingredients in cold medicines may cause discomfort when interacting with alcohol, and can even be life-threatening in severe cases, so it is recommended to avoid drinking alcohol while taking the medicine. Cold remedies are mainly used to relieve cold and flu symptoms, and the main ingredients are acetaminophen, chlorpheniramine, and pseudoephedrine hydrochloride. These ingredients may affect the alcohol metabolism abnormally, leading to some adverse reactions, such as flushing, panic and chest tightness, dizziness and headache or even a drop in blood pressure, cold limbs and so on. A very small number of patients may have serious adverse reactions, even life-threatening, because of their own physical condition or because the drug is taken in too large a dose. Although this situation is relatively rare, but once it occurs, its harm is very great. In daily life, we all know that antibiotic drugs such as cephalosporin and alcohol taken at the same time will be life-threatening. But apart from antibiotics, cold medicines and alcohol taken together are also harmful to the human body. To be safe, you should avoid drinking alcohol while taking cold medicine.