Prediction of drug dissolution from tablets using near-infrared diffuse reflectance spectroscopy as a nondestructive...

Area of Science:

• Pharmaceutical Sciences
• Analytical Chemistry
• Spectroscopy

Background:

• Drug dissolution testing is crucial for pharmaceutical quality control.
• Traditional methods can be time-consuming and destructive.
• Near-infrared (NIR) spectroscopy offers potential for rapid, non-destructive analysis.

Purpose of the Study:

• To develop and validate a Near-Infrared (NIR) reflectance spectroscopy method for measuring theophylline drug dissolution from tablets.
• To correlate NIR spectral data with laboratory dissolution data.
• To establish a predictive model for drug dissolution using NIR spectroscopy.

Main Methods:

• Seven theophylline tablet formulations were prepared at varying compressional forces.
• NIR diffuse reflectance spectroscopy was employed to collect spectral data.
• Linear regression, quadratic, cubic, and partial least-square techniques were used for data analysis and model development.

Main Results:

• A decrease in drug dissolution correlated with an increase in NIR absorbance.
• Several model equations were developed, demonstrating strong calibration between NIR data and laboratory dissolution results.
• NIR-predicted dissolution data showed similarity to traditional laboratory test results.

Conclusions:

• NIR reflectance spectroscopy is a viable, non-destructive alternative for measuring drug dissolution from tablets.
• The developed models accurately predict drug dissolution profiles.
• This spectroscopic method can enhance the efficiency of pharmaceutical quality control processes.