Drug Excipient Adsorption Technique for the Preparation of Low-Dose Tableting

Abstract

Objective: This study aimed to improve drug mixability and drug uniformity in personalized medicine low-dose tablet by developing a stable, easily mixable, drug-adsorbed filler. Methods: The research involved adsorbing drug onto filler by using three solvents and drug-to-excipient ratios of 1:50 and 1:75. The drug adsorbed fillers, were analyzed for drug content uniformity and flow properties, which are crucial for accurate dosing and manufacturing of low dose tablet. Results: Formulations T1, T2 and T3 showed similar flow properties, including bulk and tapped densities, Carr's indices, and Hausner ratios. T1 had better flowability with a lower angle of repose (23.97 degrees) compared to T2 (35.42 degrees), T3 (49 degrees), and T4 (39 degrees) and it also had higher drug uniformity (99.89%, 99.54%, 97.12%, 96.83%). Tablet evaluations of TS1, TS2, TS3 and TS4 met standard criteria for weight variation, friability, and hardness criteria, with TS1 showing a quicker disintegration time (2:58 min), indicating faster dissolution and potentially better bioavailability. Dissolution tests showed both exceeded 85% drug release within 30 min, with TS1 achieving a higher release (99.98), suggesting more efficient drug release. Conclusion: The drug-adsorbed filler premix technique effectively ensures drug content uniformity and improves low-dose drug mixing, contributing to the development of safe, efficient low-dose pharmaceuticals.