Absorption Efter oral administration af oseltamivirphosphat (prodrug) absorberes oseltamivir hurtigt fra gastrointestinalkanalen og omdannes i stor udstrækning, overvejende af hepatiske esteraser, til den aktive metabolit (oseltamivircarboxylat).
Absorption Oseltamivir is readily absorbed from the gastrointestinal tract after oral administration of oseltamivir phosphate (pro-drug) and is extensively converted by predominantly hepatic esterases to the active metabolite (oseltamivir carboxylate).