Embodiments disclosed herein relate to magnetic nanoparticles having a non-narcotic analgesic, as well as methods of preparation and use thereof. A magnetically response pharmaceutical can include a core region having magnetic nanoparticles (MNPs) and a protein-based analgesic. Further, an exterior coating comprising a polymer can be formed around the core region. The magnetically responsive pharmaceutical can be administered to a recipient and directed to a target region using an external magnetic field.
