Which drugs does patent 5,866,601 protect, and when does it expire?
Patent 5,866,601 protects TAMIFLU and is included in two NDAs. There have been three Paragraph IV challenges on Tamiflu.
Protection for TAMIFLU has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.
This patent has fifty-seven patent family members in twenty-eight countries.