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HardCardiologyHeart Failure (HFrEF)us-abimus-usmle-step-2us-usmle-step-3

A 63-year-old man with HFrEF (LVEF 25%) is on lisinopril 20 mg daily and carvedilol 25 mg twice daily. BP 118/72 mm Hg, eGFR 35 mL/min/1.73 m², K⁺ 5.4 mEq/L. He has no history of ketoacidosis. Which medication should be added now to reduce HF hospitalisation and mortality?

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