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Japan market screening · Therapeutic class
合成麻薬 · Japan Standard Commodity Classification
6 molecules in this class are marketed in Japan across 81 products. 13 of those products are not shipping normally today — 16.0% of the class. Supply status is reported to the Ministry of Health, Labour and Welfare and updated daily.
Ordered by how many products compete. Constrained means limited supply or supply suspended; supply suspended does not mean discontinued.
| Molecule | Products | Companies | Constrained | Supply mix |
|---|---|---|---|---|
| Fentanylフェンタニル | 40 | 6 | 10 | |
| Fentanyl Citrateフェンタニルクエン酸塩 | 31 | 6 | 1 | |
| Remifentanil Hydrochlorideレミフェンタニル塩酸塩 | 4 | 2 | 2 | |
| Methadone Hydrochlorideメサドン塩酸塩 | 2 | 1 | — | |
| Pethidine Hydrochlorideペチジン塩酸塩 | 2 | 1 | — | |
| Pethidine Hydrochloride / Levallorphan Tartrateペチジン塩酸塩・レバロルファン酒石酸塩 | 2 | 1 | — |
Products counts every marketed product across all strengths and forms, not companies. Companies is the number of companies marketing that molecule; the same company may appear under several molecules, so the column does not add up to a class total. Market size sits on each molecule's own page, valued at national price rather than transaction price. Figures are as at 2026-08-28.
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