Key Takeaways

A recent study found that adults who took prescription melatonin for at least one year had a 90% higher risk of developing heart failure.

Experts say the research is preliminary and that people who rely on melatonin may have underlying sleep issues that cause heart failure.

Short-term melatonin use appears safe, but healthcare providers recommend using the lowest effective dose for the shortest time possible.

A new study presented at the American Heart Association's 2025 Scientific Sessions suggests that long-term prescription melatonin use could be associated with a higher risk of heart failure, hospitalization, and death.

While the findings are attention-grabbing, experts say they're preliminary and don't prove that melatonin directly causes heart problems.

Study Find

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