Preventing Dizziness with Antihypertensive Therapy

Medication Selection

• Alpha-blockers, such as doxazosin, significantly increase the risk of dizziness and should be avoided, as shown in the ALLHAT trial, which demonstrated increased cardiovascular events with doxazosin 1
• The European Society of Cardiology recommends avoiding beta-blockers, particularly labetalol, in many patients due to their potential to cause dizziness through bradycardia and orthostatic effects, although this information is also available from Praxis Medical Insights, the ESC guideline is preferred 4
• Diuretics can cause volume depletion-related dizziness, especially in elderly patients, according to the European Heart Journal and Diabetes Care 4, 5

Combination Therapy and Dosing

• The European Society of Cardiology recommends combining amlodipine with an ACE inhibitor or ARB rather than a diuretic to minimize orthostatic effects 4
• Avoid combining beta-blockers with diuretics in patients concerned about dizziness, as this combination increases dysmetabolic effects and orthostatic symptoms, as reported in the European Heart Journal and BMJ 6, 7

Management and Monitoring

• Avoid excessive blood pressure reduction, particularly in elderly patients, as reducing systolic blood pressure by more than 25% in the first hour increases cerebral hypoperfusion and dizziness, according to the European Heart Journal 4