While melatonin is generally considered safe for short-term use, studies have documented several possible side effects:
- Common side effects: Headache, dizziness, daytime sleepiness
- Less common effects: Vivid dreams, nightmares, mild anxiety
- Rare side effects: Nausea, brief depression symptoms
Long-term effects are still being studied. Melatonin can interact with various medications, including blood thinners, diabetes medications, and immunosuppressants. It may also temporarily affect reproductive hormones. Pregnant women, nursing mothers, and people with autoimmune conditions should consult healthcare providers before use. A recent review suggests limiting regular use to 1-2 months unless directed otherwise by a healthcare provider.
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Last Updated: September 25, 2025
Disclaimer: This information is for educational purposes only and should not replace professional medical advice. Always consult with a healthcare provider before making health decisions.
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