Abstract: A pre-filled syringe storing an anesthetic is disclosed. The pre-filled syringe includes a container configured to store a liquid anesthetic solution. The liquid anesthetic solution includes an anesthetic, water, and a solvent. The container is made of a plastic that is inert to the anesthetic. The pre-filled syringe also includes a plunger made of siliconized bromobutyl rubber that is inert to the anesthetic and a rubber stopper made of siliconized bromobutyl rubber that is inert to the anesthetic. The plunger and the rubber stopper seal the container configured to store the liquid anesthetic solution.

Abstract: A container storing an anesthetic is disclosed. The container is sealed by a closure and stores a liquid anesthetic solution. The anesthetic is from 0.1% to 10% by weight of the liquid anesthetic solution. The container is made of a material that is inert to the anesthetic and the closure is made of siliconized rubber or a metal. A concentration of the anesthetic in a liquid anesthetic solution stored in the container following a predetermined time period is at least 93% of a concentration of the anesthetic in a liquid anesthetic solution before the liquid anesthetic solution is stored in the container.