The main reason why taking cold medicine can easily lead to sleepiness is that most cold medicines contain chlorpheniramine maleate, which has a central inhibitory effect, and patients will experience drowsiness, dizziness and other clinical symptoms after taking this medicine, which are normal adverse drug reactions. If the adverse reaction is obvious, you can stop the drug in time, and the symptoms will be gradually improved after stopping the drug. At the same time, the cold itself will lead to weakness, weakness of limbs and drowsiness, so you can choose the drug for the cold pathogen for treatment, mainly applying antiviral and antibiotics for treatment, and these drugs will not appear drowsy. Antibiotics can choose cephalosporin, penicillin, antiviral drugs can be used oseltamivir, ribavirin, etc.