A Thermal-Analysis-Technique-Based Mechanistic Approach toward the Release of Omeprazole from Solid Dosage Forms

Abstract

The design, development, and release kinetics of omeprazole (OME) from solid dosage forms have been investigated. These formulations were examined for their resilience in pH = 4.5 buffer solutions and their rate of disintegration in a small-intestine-like environment (pH = 6.8). The results were compared with those of the well-known brand product Losec®, where its use is accompanied by numerous benefits but drawbacks as well. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) tests were conducted in order to examine the release kinetics of the various dosage forms and provide explanations based on the interactions between the excipients and the active substance.

Keywords

• omeprazole
• excipients
• thermogravimetric analysis (TGA)
• differential scanning calorimetry (DSC)
• sustained release