The symptoms of dizziness, trance, drowsiness and weakness will be manifested after taking cold medicine when you have a cold, which may be related to the cold medicine taken by the patient. For example, if the drug contains antihistamine, the patient will have dizziness and drowsiness after taking it. Clinically commonly used compound aminoglutethimide tablets, which contain chlorpheniramine maleate, the patient will have drowsiness, sleepiness and trance after taking the drug because of the effect of antihistamine. Patients dizziness and trance after taking cold medicine may be caused by cold. After cold, there will be weakness and discomfort around the body, muscle aches and pains, and there will also be a feeling of insensibility and drowsy head trance. Having a fever after a cold can also lead to the above symptoms. If the patient’s symptoms of dizziness are not relieved even after the metabolism of the medication, it is considered that other causes of dizziness need to be examined by a hospital.