Chapter 9

Novel Excipients and Materials Used in FDM 3D Printing of Pharmaceutical Dosage Forms

Ming Lu

Ming Lu

Sun Yat-sen University, School of Pharmaceutical Sciences, Department of Pharmaceutics, No. 132, Waihuan Dong Road, Guangzhou, 510006, China

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First published: 14 December 2018
Citations: 5

Summary

This chapter highlights the polymeric materials and excipients used in pharmaceutical fused deposition modeling (FDM) 3D printing. Polylactic acid (PA) and acrylonitrile butadiene styrene (ABS) are the most widely used materials in a 3D printing technique. Generally, PLA is an ideal polymer material for the fabrication of medical devices with sustained drug release. Polyvinyl alcohol (PVA) is manufactured by the polymerization of vinyl acetate (VA) followed by partial or full hydrolysis. Ethylene vinyl acetate (EVA), a copolymer of ethylene and VA, is one of the most extensively used nondegradable polymers in pharmaceutical implant because of its excellent flexibility and good biocompatability. Hydroxypropyl methylcellulose acetate succinate (HPMCAS) is a polymer candidate to fabricated enteric tablets by FDM 3D printing technology. Polymethacrylates are a group of pH-sensitive polymers. Eudragit RL and Eudragit RS are insoluble but permeable in gastrointestinal tract. Eudragit E could be used in FDM 3D printing as an immediate release matrix former.

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