This document discusses 3D printing of pharmaceuticals. It provides a brief history of 3D printing, describing important developments from 1984 to 2011. It then discusses challenges in 3D printing technology and types of 3D printers such as nozzle-based deposition systems and selective laser sintering. Advantages include rapid prototyping and low production costs, while disadvantages include size limitations and high energy usage. The document concludes by discussing future prospects for 3D printing such as personalized medicine and examples of 3D printed drug products and dosages that have been approved by the FDA.