Pharmaceutical exciphers are pharmacologically inert ingredients that are intentionally added to pharmaceutical products and have a variety of functions, such as increasing volume, accelerating disintegration, facilitating adhesion, lubrication, mask flavor during coating, adjusting drug release curves, and so on.

Pharmaceutical excipients play a central role in the design and development of pharmaceutical preparations. The selection of excipients will affect the important properties of pharmaceutical research, clinical and commercial processes, such as stability, bioavailability, production cost control, etc., in the preparation design process and the drug life cycle. Therefore, a thorough understanding of the physical and chemical properties of pharmaceutical excipients is very important for drug development.

SK1805 is the core exciphant for projects such as naltrexone implants, a polymer biodegradable absorbent material used to encapsulate drugs into microspheres to control slow drug release.