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Japan market screening · Therapeutic class
その他のアレルギー用薬 · Japan Standard Commodity Classification
31 molecules in this class are marketed in Japan across 466 products. 70 of those products are not shipping normally today — 15.0% 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 |
|---|---|---|---|---|
| Olopatadine Hydrochlorideオロパタジン塩酸塩 | 74 | 28 | 6 | |
| Montelukast Sodiumモンテルカストナトリウム | 73 | 21 | 28 | |
| Fexofenadine Hydrochlorideフェキソフェナジン塩酸塩 | 38 | 17 | 5 | |
| Levocetirizine Hydrochlorideレボセチリジン塩酸塩 | 36 | 18 | 3 | |
| Ebastineエバスチン | 35 | 12 | 4 | |
| Cetirizine Hydrochlorideセチリジン塩酸塩 | 29 | 13 | 5 | |
| Loratadineロラタジン | 28 | 14 | 3 | |
| Bepotastine Besilateベポタスチンベシル酸塩 | 22 | 6 | 2 | |
| Ketotifen Fumarateケトチフェンフマル酸塩 | 21 | 11 | 1 | |
| Pranlukast Hydrateプランルカスト水和物 | 17 | 8 | 3 | |
| Bilastineビラスチン | 14 | 10 | — | |
| Tranilastトラニラスト | 13 | 9 | 3 | |
| Pemirolast Potassiumペミロラストカリウム | 9 | 5 | — | |
| Suplatast Tosilateスプラタストトシル酸塩 | 9 | 4 | 4 | |
| Oxatomideオキサトミド | 8 | 6 | 1 | |
| Azelastine Hydrochlorideアゼラスチン塩酸塩 | 6 | 3 | 1 | |
| Emedastine Fumarateエメダスチンフマル酸塩 | 6 | 3 | 1 | |
| Desloratadineデスロラタジン | 4 | 4 | — | |
| Dupilumab (Genetical Recombination)デュピルマブ（遺伝子組換え） | 4 | 1 | — | |
| Abrocitinibアブロシチニブ | 3 | 1 | — | |
| Lanadelumab (Genetical Recombination)ラナデルマブ（遺伝子組換え） | 2 | 1 | — | |
| Lebrikizumab (Genetical Recombination)レブリキズマブ（遺伝子組換え） | 2 | 1 | — | |
| Nemolizumab (Genetical Recombination)ネモリズマブ（遺伝子組換え） | 2 | 1 | — | |
| Ozagrel Hydrochloride Hydrateオザグレル塩酸塩水和物 | 2 | 1 | — | |
| Ramatrobanラマトロバン | 2 | 1 | — | |
| Tralokinumab (Genetical Recombination)トラロキヌマブ（遺伝子組換え） | 2 | 1 | — | |
| Berotralstat Hydrochlorideベロトラルスタット塩酸塩 | 1 | 1 | — | |
| Garadacimab (Genetical Recombination)ガラダシマブ（遺伝子組換え） | 1 | 1 | — | |
| Icatibant Acetateイカチバント酢酸塩 | 1 | 1 | — | |
| Rupatadine Fumarateルパタジンフマル酸塩 | 1 | 1 | — | |
| Sebetralstatセベトラルスタット | 1 | 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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