Abstract
Three-dimensional printing (3DP) techniques are a group of very versatile manufacturing processes. Each process differs fundamentality in terms of raw material (drug, excipients, and polymer), unique capabilities, and mechanism used to deposit materials into layers. Additionally, the process imparts unique mechanical, physical, and chemical attributes to the dosage forms. Three-dimensional printing techniques that can be deployed in pharmaceutical manufacturing are fused deposition modeling, stereolithography, selective laser sintering, binder jetting, semisolid extrusion, and melt-extrusion deposition. These techniques can be used for fabricating complex dosage forms and drug delivery systems, including sustained, modified controlled, transdermal, abuse-deterrent, pediatric delivery systems, etc. Current Food and Drug Administration regulatory paradigm can be used for submission and review of 1D printed dosage forms for the approval. However, there are many challenges to bring 3DP manufactured drug product to the patients which will be discussed in this chapter.
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