Rules differ by region: Melatonin is OTC in the US, UK and Canada, but prescription-only in Australia, New Zealand, Germany and several other countries. This affects import rules, not the flight itself.
💼 Cabin bag
Yes
Permitted. Over-the-counter supplement, no restrictions.
✈️ Hold (checked)
Yes
Permitted.
💡 Tip: Melatonin tablets are a solid supplement with no liquid restrictions. Note: melatonin is an over-the-counter product in the US, UK and Canada but is prescription-only in Australia, New Zealand and some EU countries — check import rules at your destination.
Common questions
Yes. Melatonin tablets are a solid supplement with no liquid restrictions and are permitted in carry-on everywhere.
No. It is prescription-only in Australia, New Zealand, Germany and several other countries. You can still fly with it, but you may need to declare it at customs and could face quantity restrictions.
A personal supply for the duration of your trip (typically up to 90 days) is usually permitted without issue, but check destination country rules.
Related items
Browse all Medical →Based on official TSA guidelines. Rules vary by airline and route — always verify with your carrier before travel. · Rules last verified May 2026.
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