أوسيلتاميفير فوسفات
| Kind | API |
|---|---|
| Class | Antiviral — neuraminidase inhibitor (influenza) |
| Synonyms | GS-4104, Tamiflu, Oseltamivir P |
| Common uses / forms | Oral capsules and powder for oral suspension for treatment and prophylaxis of influenza A and B |
| Properties | BCS Class III (high solubility, low permeability); ethyl-ester prodrug of oseltamivir carboxylate; synthesis historically routed from shikimic acid |
| Compendia | USP, EP, BP, JP |
| Sourcing origins | China, India, EU |
| Dominant inbound route | Hormuz |
| Indicative price band | $$$ ($100–1000 / kg) |
| Indicative lead time | medium (50–80 days) |
| Notes | JP retained and justified — Japan is the world's largest oseltamivir user, so a JP monograph is genuine, not speculative. Pandemic-driven demand spikes and stockpiling create volatility; ester prodrug; once shikimic-acid-limited, now broader Chinese/Indian supply |
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Cite as: AUPAM Experts' Office, Oseltamivir phosphate — sourcing profile (API) — AUPAM Data Bank, retrieved 2026-08-31, https://aupameo.org/datasets/databank/a-oseltamivir-phosphate.html