Why do some heart medications make you cough?

Coughing is a common side effect of some heart medications. This occurs because many heart medications work by blocking the formation of certain enzymes that are involved in the production of angiotensin II, which regulates blood pressure and volume. When these enzymes are blocked, more angiotensin II is produced in the lungs than elsewhere, causing irritation and resulting in a cough reflex. Furthermore, some medications can directly activate sensory receptors found in airways, triggering an increase in mucus production and a cough reflex.

In addition to coughing caused by angiotensin-related pathways or direct effects on sensory receptors, there may be other contributing factors to why you experience coughing when taking certain heart medications. For example, some medication formulations contain ingredients that stimulate nerve endings on throat tissue leading to coughing or throat irritation. Additionally, reduced oxygen levels due to decreased lung function can often trigger minor chest discomfort or a chronic dry cough with certain heart medications as well.

If you experience frequent coughing episodes due to your heart medication(s), it’s important to speak with your doctor about managing your symptoms through adjustments made regarding dosage or switching medicines altogether.