Development and Pharmacological Evaluation of a Nano-Polyherbal Formulation for Type 2 Diabetes

Background Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, impaired insulin secretion, and persistent hyperglycemia. Despite the availability of synthetic antidiabetic drugs, their long-term use is often associated with adverse effects and limited efficacy. Polyherbal formulations have gained increasing attention due to their synergistic therapeutic potential, safety profile, and traditional acceptance. However, challenges such as poor bioavailability and inconsistent efficacy limit their clinical application. Objective The present study focuses on the development of a nano-polyherbal formulation to enhance the therapeutic efficacy of selected antidiabetic medicinal plants. Materials and Methods The formulation was prepared using suitable nano-carrier systems to improve solubility, stability, and targeted delivery of bioactive phytoconstituents. Physicochemical characterization of the formulation was carried out using parameters such as particle size, zeta potential, entrapment efficiency, and in vitro drug release. Pharmacological evaluation was performed using in vitro assays and in vivo experimental models of T2DM to assess antidiabetic activity, including glucose tolerance, insulin sensitivity, and biochemical parameters. Results The results demonstrated improved bioavailability and enhanced antidiabetic activity of the nano-polyherbal formulation compared to conventional herbal preparations. Conclusion This study suggests that nano-based delivery of polyherbal formulations offers a promising strategy for effective and safer management of type 2 diabetes mellitus

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