Home › Therapeutic areas › Antiparkinsonian agents
Japan market screening · Therapeutic class
抗パーキンソン剤 · Japan Standard Commodity Classification
23 molecules in this class are marketed in Japan across 136 products. 9 of those products are not shipping normally today — 6.6% 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 |
|---|---|---|---|---|
| Pramipexole Hydrochloride Hydrateプラミペキソール塩酸塩水和物 | 26 | 10 | 4 | |
| Ropinirole Hydrochlorideロピニロール塩酸塩 | 22 | 7 | 1 | |
| Amantadine Hydrochlorideアマンタジン塩酸塩 | 14 | 6 | — | |
| Levodopa / Carbidopa Hydrateレボドパ・カルビドパ水和物 | 10 | 5 | 2 | |
| Trihexyphenidyl Hydrochlorideトリヘキシフェニジル塩酸塩 | 10 | 8 | 1 | |
| Biperiden Hydrochlorideビペリデン塩酸塩 | 7 | 4 | 1 | |
| Entacaponeエンタカポン | 5 | 5 | — | |
| Rotigotineロチゴチン | 5 | 1 | — | |
| Bromocriptine Mesilateブロモクリプチンメシル酸塩 | 4 | 4 | — | |
| Cabergolineカベルゴリン | 4 | 2 | — | |
| Droxidopaドロキシドパ | 4 | 2 | — | |
| Levodopa / Benserazide Hydrochlorideレボドパ・ベンセラジド塩酸塩 | 4 | 3 | — | |
| Pergolide Mesilateペルゴリドメシル酸塩 | 4 | 2 | — | |
| Levodopaレボドパ | 3 | 1 | — | |
| Selegiline Hydrochlorideセレギリン塩酸塩 | 3 | 3 | — | |
| Biperiden Lactate乳酸ビペリデン | 2 | 2 | — | |
| Levodopa / Carbidopa Hydrate / Entacaponeレボドパ・カルビドパ水和物・エンタカポン | 2 | 1 | — | |
| Rasagiline Mesilateラサギリンメシル酸塩 | 2 | 1 | — | |
| Apomorphine Hydrochloride Hydrateアポモルヒネ塩酸塩水和物 | 1 | 1 | — | |
| Foslevodopa / Foscarbidopa Hydrateホスレボドパ・ホスカルビドパ水和物 | 1 | 1 | — | |
| Istradefyllineイストラデフィリン | 1 | 1 | — | |
| Opicaponeオピカポン | 1 | 1 | — | |
| Safinamide Mesilateサフィナミドメシル酸塩 | 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.
Tell us which molecules matter to you. We will tell you what the public data can and cannot answer before you commission anything.
Send an enquiryOur Database Division replies in English within three business days (Japan time).