Lelak · MMWR. Morbidity and mortality weekly report 2022 · retrospective surveillance registry study · n=260,435

Pediatric Melatonin Ingestions - United States, 2012-2021.

Cited 70 times in the scientific literature.

Level 4 - case-series / case-control

Retrospective observational surveillance study using poison center registry data (case-series/cross-sectional registry analysis)

PubMed 35653284 · doi:10.15585/mmwr.mm7122a1 · record verified 2026-08-28

What was done

Researchers analyzed isolated melatonin ingestions among children, adolescents, and young adults aged ≤19 years reported to the American Association of Poison Control Centers' National Poison Data System (NPDS) from January 1, 2012, to December 31, 2021.

What was found

A total of 260,435 pediatric melatonin ingestions were reported over the 10-year study period. Annual ingestions increased by 530%, with melatonin rising from 0.6% of all pediatric poison center reports in 2012 to 4.9% in 2021. Pediatric hospitalizations and more serious outcomes increased, primarily driven by unintentional ingestions among children aged ≤5 years. Five children required mechanical ventilation, and two died.

Why it matters

This study documents a dramatic surge in pediatric melatonin ingestions over a decade, highlighting that widely available over-the-counter sleep supplements can lead to severe pediatric outcomes, hospitalizations, and fatalities.

Limits

The findings rely on passive poison center reporting, which introduces reporting bias and likely undercounts total exposures. The abstract does not report specific ingested doses, exact hospitalization totals, confirmation of product purity or active ingredient concentrations, or detailed clinical confounders.

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