The Claim

Chronic melatonin therapy for insomnia is associated with substantially elevated hazards for incident heart failure, heart failure hospitalizations, and all-cause mortality over a five-year follow-up period.

Source: Abstract 4371606: Effect of Long-term Melatonin Supplementation on Incidence of Heart Failure in Patients with Insomnia

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
59score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Using melatonin long-term to treat insomnia might actually increase the risk of serious heart problems and death, according to recent real-world patient data.

See the scientific wording

The widespread perception of melatonin as a safe, benign chronic therapy for insomnia is contradicted by real-world cohort data demonstrating substantially elevated hazards for incident heart failure, heart failure hospitalizations, and all-cause mortality over a five-year follow-up period in patients with insomnia.

What the research says

1 study

  1. Study: Abstract 4371606: Effect of Long-term Melatonin Supplementation on Incidence of Heart Failure in Patients with Insomnia

    The study's conclusion explicitly synthesizes the primary and secondary endpoints to directly challenge the prevailing clinical perception of melatonin's safety. The consistent elevation in hazard ratios across cardiovascular and mortality endpoints provides the evidentiary basis for this broader clinical assertion.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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