A mixing device and methods of utilizing the same. More specifically, embodiments of the present disclosure relate to a mixing device that may be used to make medications and specialized pharmaceuticals for administration via intrathecal infusion therapy, or the like. A mixing device may comprise an upper chamber, a lower chamber having four compartments for accepting an amount of medication, wherein the upper chamber and the lower chamber may be coupled and may be used to mix and make medication accessible via a Luer Lock adapter, termination, or the like, wherein the device is in compliance with USP 797 standards.