Formulation and Evaluation of Microcapsule for Peptic Ulcer Treatment

Formulation and evaluation of micro-capsules for peptic ulcers aim to create sustained-release systems often using polymers like chitosan guar gum, or HPMC, to prolong drug action in the stomach. Peptic ulcer disease is a common gastrointestinal disorder characterized by mucosal damage caused primarily by gastric acid, Helicobacter pylori infection, and prolonged use of non-steroidal anti-inflammatory drugs (NSAIDs). Conventional oral drug delivery systems often exhibit limited gastric residence time and reduced bioavailability, leading to suboptimal therapeutic outcomes. The present study focuses on the formulation and evaluation of drug-loaded microcapsules designed to enhance gastric retention, provide controlled drug release, and improve therapeutic efficacy in the management of peptic ulcer. Microcapsules were prepared using suitable polymers such as sodium alginate, chitosan, and ethyl cellulose by employing techniques like ionotropic gelation or solvent evaporation. The formulated microcapsules were evaluated for particle size, surface morphology, encapsulation efficiency, drug loading, swelling index, in-vitro drug release, and stability studies. Fourier-transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) were performed to assess drug–polymer compatibility. In-vitro release studies were carried out in simulated gastric fluid (pH 1.2) to mimic gastric conditions. The results demonstrated that the optimized formulation exhibited uniform particle size distribution, high encapsulation efficiency, and sustained drug release over an extended period. Release kinetics followed a controlled diffusion mechanism, indicating the suitability of the formulation for prolonged gastric delivery. The study concludes that microencapsulation represents a promising approach for improving the therapeutic effectiveness of anti-ulcer drugs like lafutidine by enhancing bioavailability, reducing dosing frequency, and minimizing side effects.