JP ATC N06DX01 · updated 2 Nov 2026
Memantine shortage in Japan
Is there a Memantine shortage in Japan?
Yes. As of 2 Nov 2026, 7 Memantine products are reported short in Japan, the first since 7 Feb 2024. No return date has been given. Main reason: other.
Also short in Canada, Italy, Spain, Ireland, Austria, Belgium, Czechia. All countries.
Affected products in Japan
| Country | Product | Company | Since | Expected back | Reason |
|---|---|---|---|---|---|
| JP | メマンチン塩酸塩錠10mg「アメル」 | Kyowa Pharmaceutical | 7 Feb 2024 | not given | Other |
| JP | メマンチン塩酸塩錠20mg「アメル」 | Kyowa Pharmaceutical | 7 Feb 2024 | not given | Other |
| JP | メマンチン塩酸塩錠5mg「アメル」 | Kyowa Pharmaceutical | 7 Feb 2024 | not given | Other |
| JP | メマンチン塩酸塩OD錠5mg「サワイ」 limited | Sawai | 8 May 2026 | not given | Manufacturing problem |
| JP | メマンチン塩酸塩OD錠10mg「トーワ」 limited | Towa (Pensa) | 6 Aug 2026 | not given | Manufacturing problem |
| JP | メマンチン塩酸塩OD錠20mg「トーワ」 limited | Towa (Pensa) | 6 Aug 2026 | not given | Manufacturing problem |
| JP | メマンチン塩酸塩OD錠15mg「日新」 limited | Nissin Pharmaceutical | 14 Sep 2026 | not given | Increased demand |
Source
MHLW (Ministry of Health, Labour and Welfare), supply status of prescription medicines. Official list. Prescription products under limited shipment or supply suspension (delistings excluded); one row per product.