Value Village / Before you come to Japan

What do people get wrong about over-the-counter medicine in Japan?

This answer is a draft. It stays unpublished until legal review and source verification are complete.

The answerThe common misunderstanding is that a drugstore sells everything a pharmacy does. Japan divides non-prescription medicines into four classes; the strongest (Class 1 and "guidance-required") can only be sold by a licensed pharmacist who is present, so smaller shops and late-night hours may not have them.

Falling ill on holiday means a drugstore visit, and the Japanese system sorts medicines into legal classes that decide where and how you can buy them. Knowing the classes saves a wasted trip.

The classes (Pharmaceuticals and Medical Devices Act)

ClassWho can sellExamplesWhere
Guidance-required (要指導医薬品)Pharmacist only, in person or (since May 2026) by video consultation for most itemsRecently switched from prescription; the emergency contraceptive (since Feb 2026)Pharmacies with a pharmacist on duty
Class 1 (第1類)Pharmacist onlySome strong antacids (H2 blockers), loxoprofen tablets (Loxonin S), some hair-growth and anti-fungal productsBehind the counter
Class 2 (第2類)Pharmacist or registered sellerMost cold medicines, painkillers (ibuprofen, acetaminophen), loxoprofen patches, antihistaminesOpen shelves, marked ②
Class 3 (第3類)Pharmacist or registered sellerVitamins, eye drops, mild digestivesOpen shelves, marked ③
[Verify] Class assignments change as products are reclassified; confirm examples with the MHLW OTC classification list before publication. Dose comparisons are indicative.

Misunderstanding 1|Any drugstore staff can sell any medicine

Class 1 and guidance-required medicines need a pharmacist. Many drugstores have one only during set hours; late at night the counter may be closed while the shop is open.

Misunderstanding 2|"Kaze-gusuri" (cold medicine) is the same as at home

Japanese cold medicines are typically combination products with several active ingredients at modest doses. Read the ingredient list — they may include an antihistamine that causes drowsiness, or caffeine.

Misunderstanding 3|Pseudoephedrine decongestants are on the shelf

Products with pseudoephedrine above 10% are treated as stimulant raw materials; OTC nasal products here mostly use other ingredients. Do not expect the same decongestants as at home.

Misunderstanding 4|The pharmacist will not speak English

Large chains in tourist areas often have English-speaking staff or translation devices, and the MHLW has published a multilingual pharmacy guide. Showing the name of the active ingredient on your phone works well.

Misunderstanding 5|It is cheaper to buy medicine at the airport

Airport shops stock a limited range at higher prices. Drugstores in town (chains are on almost every street) are cheaper and better stocked.

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Sources

https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000092820.html

https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/iyakuhin/index.html

https://www.jacds.gr.jp/

⚠️ Editorial note: the source URLs above were identified by search. Our working environment cannot reach go.jp domains, so the contents have not been checked against the text. Verify every source before publication and record who checked it and when.

About this article

What we share here are ideas and everyday practices passed down among people living in Japan, together with general information drawn from public sources. They are not official recommendations, and they are not professional instruction. Practices vary between households and regions.

This is general information. Results vary from person to person and depend on your own conditions and surroundings.

Please decide for yourself, using your own judgement, whether any of this suits your situation. We cannot accept responsibility for any damage, loss or injury arising from following this article.

Rules and procedures change. Please confirm the latest official information before you act.

Sources

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