The application provides pharmaceutical compositions comprising dexmedetomidine or a pharmaceutically acceptable salt thereof and sodium chloride, wherein the composition is disposed within a plastic container as a ready to use premixture. The application also provides a premixed, ready to use sterile dexmedetomidine solution comprising dexmedetomidine and sodium chloride, wherein the solution is provided within a plastic container. Also provided are methods of providing dexmedetomidine to a subject in need of such, wherein the composition is disposed within a sealed plastic container.
