Аннотация:Biodegradable biopolymers attract much attention in biology and medicine due to its wide applications. The present review considers a biodegradable and biocompatible polymer of bacterial origin, poly(3-hydroxybutyrate) (PHB), which has wide perspectives in medicine and pharmaceutics. It highlights studies on the development of various materials, devices, and formulations based on PHB for application in medicine, bioengineering, and pharmacy due to PHB’s basic properties: biodegradability and biocompatibility.