Loxoprofen in Japan: Loxonin S, a class 1 painkiller
Loxoprofen: how it is named on Japanese boxes, the product in this database that contains it, and the rules for bringing it into Japan and taking it home. On 3 October 2026, PMDA's search of OTC package inserts returned 154 products containing loxoprofen (including patches and creams).
What it is called on Japanese boxes
How loxoprofen is written on Japanese boxes, with the official English name from the JAN database or the Japanese Pharmacopoeia.
| Official English name | Name on Japanese boxes | Listed in |
|---|---|---|
| Loxoprofen Sodium Hydrate | ロキソプロフェンナトリウム水和物 | JAN |
Loxoprofen in Japanese products
The amount of loxoprofen per dose and per day, as each package insert sets it.
On 3 October 2026, PMDA's search of OTC package inserts returned 154 products containing loxoprofen (including patches and creams).
| Product | Amount | Most a day for adults | Class on the box |
|---|---|---|---|
| Loxonin S | 68.1 mg per dose of 1 tablet | 204.3 mg (3 doses a day) | 第1類医薬品 |
Each package insert sets its own dose. Follow the directions and dosage on the box you buy.
Bringing it into Japan
Medicine with loxoprofen that you bring for your own use counts towards Japan's supply limits for medicine.
Taking it home
Frequently asked questions
Is loxoprofen sold over the counter in Japan?
On 3 October 2026, PMDA's search of OTC package inserts returned 154 products containing loxoprofen (including patches and creams). In this database: Loxonin S.
How much Loxoprofen Sodium Hydrate is in Loxonin S?
68.1 mg per dose of 1 tablet, and at most 204.3 mg (3 doses a day) by its package insert.
Related items
PMDA package insert search (Japanese)
Sources for this page
- PMDA (Pharmaceuticals and Medical Devices Agency) OTC and guidance-required drug package insert search (一般用医薬品・要指導医薬品 添付文書等情報検索)checked October 3, 2026
- National Institute of Health Sciences Japanese Accepted Names for Pharmaceuticals (JAN) databasechecked October 3, 2026
- PMDA (Pharmaceuticals and Medical Devices Agency) ロキソニンS: package insert (添付文書)checked October 3, 2026
Compiled by Japan Japan !! · Updated October 3, 2026