A 75-year-old man reports to his primary care office feeling…
A 75-year-old man reports to his primary care office feeling fatigued and weak. Upon examination the patient has bradycardia and a blood pressure of 110/60 mm Hg. The current antihypertensive regimen includes metoprolol, enalapril, amlodipine, and chlorthalidone. Which of his medications is contributing to his lower heart rate?