This document discusses parenteral products, which are sterile preparations meant to be administered via injection. It covers preformulation factors like pH and solubility that must be considered, as well as common routes of administration like intravenous, intramuscular, and subcutaneous. The main types of parenterals described are powders for injection, colloidal solutions, injectable emulsions, suspensions, and infusion fluids. Key aspects of parenteral formulation include choosing appropriate solutes, vehicles like water and oils, and added substances like antimicrobials and buffers. General procedures for production include cleaning, preparation, sterilization, filling and packaging using containers like vials, ampoules and cartridges.