The present invention relates to an intravenous infusion dosage form comprising: an aqueous solution of pemetrexed or its pharmaceutically acceptable salt at a concentration ranging from 1.0 mg/ml to 20.0 mg/ml present in a multilayered flexible plastic infusion container, wherein the multilayered flexible plastic infusion container has an oxygen scavenger layer sandwiched between an outermost and an innermost layer of the container, the container being free of a polyamide and wherein the multilayered flexible plastic infusion container filled with the aqueous solution of pemetrexed is autoclavable.本發明涉及一種靜脈注射劑型,包括:以範圍從1.0 mg/ml到20.0 mg/ml的一濃度存在於多層可撓性塑膠注射容器中的培美曲塞或其藥學上可接受的鹽的水溶液,其中該多層可撓性塑膠注射容器具有夾在容器的最外和最內層之間的去氧劑層,該容器不含聚醯胺,並且其中被培美曲塞的水溶液填充的多層可撓性塑膠注射容器是可高壓滅菌的。