What is a common side effect of ACE inhibitors?

ACE inhibitors, or angiotensin-converting enzyme inhibitors, are commonly used to treat conditions such as hypertension and heart failure. One of the well-documented side effects of ACE inhibitors is hypotension, which refers to abnormally low blood pressure. This occurs because ACE inhibitors work by preventing the conversion of angiotensin I to angiotensin II, a process that normally leads to blood vessel constriction and increased blood pressure. By inhibiting this mechanism, ACE inhibitors promote vasodilation, leading to a decrease in blood pressure.

Patients on ACE inhibitors may experience symptoms of hypotension, which can include dizziness, lightheadedness, and fainting, especially when transitioning from sitting or lying down to standing. Monitoring blood pressure is essential for patients taking these medications to ensure that it remains within a safe range.

The other options do not typically associate as common side effects of ACE inhibitors. Weight gain is more often associated with other classes of medications or conditions rather than ACE inhibitors. Insomnia is not a primary side effect linked to their use, and increased heart rate is generally not a consistent effect and could be linked to other factors, including the underlying conditions being treated.