What is a potential side effect of angiotensin receptor blockers?

Angiotensin receptor blockers (ARBs) are medications commonly used to manage hypertension and heart failure. One of the potential side effects associated with ARBs is dizziness. This can occur due to the drug's effect on blood pressure; when blood pressure is lowered, especially when standing up quickly, it can lead to symptoms of dizziness or lightheadedness. This is a result of orthostatic hypotension, which is a sudden drop in blood pressure upon standing.

Dizziness can be particularly significant when initiating therapy with an ARB or when increasing the dosage. Patients may be advised to rise slowly from sitting or lying positions to help mitigate this effect. Understanding this side effect prepares healthcare providers to monitor patients closely and provide education to manage or prevent dizziness effectively.