Abstract: Polymers of natural origin have garnered significant attention in pharmaceutical sciences due to their eco-friendly, biocompatible, and sustainable nature. This review explores the diverse applications of natural polymers, focusing on their roles as excipients in drug formulation and delivery. Derived from plant, animal, and protein sources, these polymers are instrumental in designing novel drug delivery systems such as controlled, sustained, and targeted therapies. The review highlights the properties of natural polymers, including biodegradability, biocompatibility, and cost-effectiveness, while also addressing challenges like variability in chemical composition and microbial contamination. Recent advancements in polymeric innovations, such as hydrogel and nanoparticle-based systems, are discussed for their potential in enhancing drug stability, solubility, and bioavailability. The applications extend to wound healing, tissue engineering, and regenerative medicine, where these polymers mimic biological environments to promote cellular growth and repair. Additionally, the review sheds light on emerging polymers, including Moringa seed mucilage and fenugreek gum, as promising candidates for pharmaceutical innovation. By bridging the gap between natural resource utilization and modern therapeutic needs, this work underscores the critical role of herbal polymers in advancing sustainable and effective pharmaceutical solutions.
Soulakhe et al. (Mon,) studied this question.