MODERATE — Monitor Closely
FDA-documented interaction. P-gp inhibition increases digoxin levels ~15%. Additive bradycardia. Commonly co-prescribed in heart failure with appropriate monitoring.
Evidence level: STRONG
Carvedilol can modestly increase digoxin levels and both drugs slow your heart rate. While commonly prescribed together for heart failure, monitoring is important.
Carvedilol inhibits P-glycoprotein, increasing digoxin levels by approximately 15%. Both drugs also slow heart rate. FDA digoxin label lists beta-blockers as interacting drugs.
This combination is often intentionally prescribed for heart failure, but your heart rate and digoxin levels need regular monitoring. Report if your heart rate drops below 60 consistently.
Take Carvedilol at the same time daily — never stop abruptly (risk of rebound hypertension). Digoxin follows its prescribed schedule. Beta-blockers can be taken with or without food.
Higher risk for: those with asthma or COPD, bradycardia, diabetes (may mask hypoglycemia symptoms), elderly, concurrent calcium channel blocker use, or peripheral vascular disease.
Slow heartbeat, dizziness, fatigue, nausea (signs of digoxin excess)
Monitor digoxin levels after starting carvedilol. Monitor heart rate. Combination is standard in heart failure but requires careful titration.
Beta blocker interactions can affect heart rate and blood pressure. Discuss with your doctor: alternative blood pressure medications (ACE inhibitors, ARBs) may have fewer interactions. Monitor heart rate and report any dizziness or fatigue.
Carvedilol can modestly increase digoxin levels and both drugs slow your heart rate. While commonly prescribed together for heart failure, monitoring is important.
Take Carvedilol at the same time daily — never stop abruptly (risk of rebound hypertension). Digoxin follows its prescribed schedule. Beta-blockers can be taken with or without food.
Slow heartbeat, dizziness, fatigue, nausea (signs of digoxin excess)
Beta blocker interactions can affect heart rate and blood pressure. Discuss with your doctor: alternative blood pressure medications (ACE inhibitors, ARBs) may have fewer interactions. Monitor heart rate and report any dizziness or fatigue.
Monitor digoxin levels after starting carvedilol. Monitor heart rate. Combination is standard in heart failure but requires careful titration.
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