Importing Medication in Japan: what actually matters to know
Short answer
You may import up to a one-month supply of prescription medication without customs declaration, but you must carry a doctor's prescription in English. Avoid substances containing codeine or methylephedrine, as these are strictly prohibited. Always keep medication in original, unopened packaging to prevent customs issues.
From real experience
Personal medication import: Up to a one-month supply of prescription drugs can be brought into Japan without customs declaration.
For narcotics, psychotropics, or stimulants, a specific 'Yunyu Kakunin-sho' (import certificate) is required. Carry prescriptions in English for all regular prescription medication. Over-the-counter medicine in original blister packs rarely causes issues.
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Travelers to Japan generally do not face issues when bringing prescription or over-the-counter medications in blister packs or pill organizers.
Keep medications in carry-on or checked luggage, but ensure they do not contain substances prohibited by Japanese law. Commercial food items like jam or baby puree are typically allowed in checked luggage.
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Importing prescription medication into Japan: General OTC medicine is rarely inspected.
For psychotropics, antidepressants, and strong painkillers, carrying the doctor's prescription (preferably in English or with a clear label) is mandatory to avoid customs issues. Always keep medicine in original, unopened packaging.
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Standard Nurofen (ibuprofen) is legal to import into Japan.
However, medications containing codeine or methylephedrine (e.g., Paburon and some 'plus' versions of common meds) are strictly prohibited and can cause legal issues during customs. Locals use EVE or Loxonin S (loxoprofen) for pain relief, which are available over-the-counter.
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Certain medications may be restricted or prohibited from entering Japan.
Common examples include No-Shpa, Tempalgin, and nasal sprays. It is crucial to consult official Japanese customs regulations for a comprehensive list of prohibited items before travel.