Eating a vasodilator (such as nitroglycerin, etc.) dizziness may be due to a rapid drop in blood pressure or cerebral blood supply is insufficient, according to the cause of the targeted treatment, can be prescribed by the use of midodrine hydrochloride tablets, nimodipine and other drugs treatment. 1. Rapid fall of blood pressure: blood pressure will fall after taking medicines for expanding blood vessels, and the fall of blood pressure will cause slow blood circulation, insufficient blood supply to distal capillaries and ischemia of blood vessels, which will lead to insufficient blood volume in peripheral circulation of cerebral arteries, resulting in dizziness, accompanied by headache and other symptoms. It can be treated with Midodrine Hydrochloride Tablets, whose main function is to prevent vasodilation and elevate blood pressure, thus improving the symptoms of dizziness. 2. Insufficient cerebral blood supply: When blood pressure drops, insufficient cerebral blood supply occurs, the blood in the brain is not supplied, the patient’s brain tissue is ischemic and hypoxic, resulting in dizziness and headache. Nimodipine tablets can be used under the guidance of a doctor to improve the blood supply to the brain, thus relieving the symptoms of dizziness. If the patient takes the vasodilating drugs to appear dizziness symptoms, it is recommended to consult a doctor in a timely manner, according to the cause of targeted treatment.