A container and method for storing a pharmaceutical agent are provided for enhancing the storage time. The storage time of the pharmaceutical agent is improved by reducing the loss of stabilizing agents in the pharmaceutical agent. The storage container is formed from a polyolefin that includes a stabilizing agent in an amount effective to reduce or inhibit the migration of stabilizing agents in the pharmaceutical agent. The polyolefin container is formed with a fatty acid amide such as erucamide for stabilizing insulin that contains m-cresol and/or phenol as stabilizing agents for the insulin. The fatty acid amide incorporated in the container inhibits and/or reduces the rate of migration of the m-cresol and/or phenol into the polyolefin to extend the storage life of the insulin. The container can be a syringe, such as a pre-filled syringe, a storage vial or the flow path of an infusion pump.
