Though the potential for side effects exists with all medications, angiotenisn-II receptor blockers (ARBs) have few common side effects. In fact, one benefit of ARBs is that they generally do not cause the most common side effect associated with angiotensin converting enzyme (ACE inhibitors – a dry, persistent cough.

One potentially serious side effect is hyperkalemia – an abnormally high level of potassium in the blood. However, patients taking ARBs usually have regular blood tests to check potassium levels and therefore avoid any serious consequences. Other serious side effects may occur with ARBs, but are rare. People should seek medical attention immediately for any side effects of hyperkalemia or an allergic or other severe reaction to ARBs, including:

Other potential side effects of ARBs include:

• Headache
• Nausea or upset stomach
• Drowsiness, weakness or fatigue
• Runny nose or sinus pain
• Sore throat or cough
• Depression or anxiety
• Back pain
• Salty or metallic taste in mouth