Parenteral Drug Delivery and Manufacturing Technology

Parenteral drug delivery is defined linguistically as any non-oral drug administration routes, such as topical to the skin or eyes, buccal, intranasal, intravenous, etc. As a result, the field encompasses a wide range of dosage forms and administration methods. Despite these differences, numerous commonalities exist in the formulation, manufacturing, and packing of the parenterally given dosage forms. The oral route is chosen since it is simpler for most patients. However, some substances cannot be administered orally because of the digestive system or because the gastrointestinal tract has limited intestinal permeability, as is typically the case for peptides and related biomolecules. In this case, the only method of administration that may deliver the required dosage of the drug to reach the required therapeutic concentrations is parenteral administration. The need for parenteral drug delivery is still necessary in many cases despite enormous advances in oral drug delivery, which even allow some peptides to be absorbed orally. For this reason, the area has a great deal of interest in healthcare advancements in general and is a very important field for pharmaceutical sciences.