High blood pressure dizziness can take hydrochlorothiazide, nifedipine, propranolol and other drugs to treat. 1. Hydrochlorothiazide: belongs to diuretic drugs, after taking it can reduce the extracellular fluid volume and cardiac output, so as to achieve the effect of lowering blood pressure, can effectively alleviate dizziness caused by elevated blood pressure, dizziness and other uncomfortable symptoms. It is necessary to monitor the electrolytes after taking the drug and supplement potassium symptomatically to avoid causing hypokalemia. 2. Nifedipine: it belongs to calcium channel blocker, after taking it, it can act on vascular smooth muscle, leading to dilation of small arteries and lowering blood pressure. It is mainly used in the treatment of hypertension combined with angina pectoris, renal disease and asthma. Flushing, nausea and other uncomfortable symptoms may occur after taking it, and need to be closely observed. 3. Propranolol: belongs to β-adrenergic receptor blocking drugs, after taking it, it can reduce cardiac output and inhibit the release of renin, so as to achieve the effect of lowering blood pressure. It is commonly used in the treatment of combined angina pectoris and migraine. After taking it, nausea, vomiting, skin rash and other uncomfortable reactions may occur. In addition, angiotensin receptor antagonists such as ramipril and angiotensin II receptor antagonists such as valsartan are also widely used in patients with hypertension. Patients with hypertension are advised to consult the cardiovascular medicine department for specific medications and decide after a comprehensive assessment of the condition by the doctor.