The symptoms of drowsiness after taking cold medicine are normal, which is a very common adverse reaction to cold medicine, because most cold medicine contains chlorpheniramine maleate, these drugs have a certain central inhibitory effect, after eating the symptoms of drowsiness, the cold itself will also lead to weakness of the limbs, sleepy performance. It is recommended to drink more water to speed up the metabolism, and the drowsiness will be relieved when the cold is cured and the cold medicine is stopped. At the same time, for the treatment of colds, you can choose Chinese medicines that do not cause drowsiness, such as Shuanghuanglian, Banlangen, etc.