Harvard Heart Letter

Slow adoption of helpful heart failure drug

Studies have shown that people with heart failure can benefit from the drug spironolactone, but concerns about possible side effects may have made some doctors reluctant to prescribe it. It can sometimes boost potassium levels dangerously high. Spironolactone also causes breast swelling and tenderness, a condition called gynecomastia. If you have heart failure and a weakened left ventricle, ask your doctor if spironolactone is an option for you.
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