While melatonin is generally considered safe for short-term use, studies indicate several possible side effects:
- Daytime drowsiness
- Headaches
- Dizziness
- Mild anxiety
- Short-term feelings of depression
- Mild tremors
- Mild nausea
Less common but more serious side effects can include:
- Vivid dreams or nightmares
- Reduced blood pressure
- Interactions with blood thinners and diabetes medications
Important note: Long-term effects of regular melatonin use are still being studied. Research suggests that prolonged use might affect natural hormone production and should be discussed with a healthcare provider.
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Last Updated: August 12, 2025
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