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Updated: Jul 8, 2026
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Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
Dissolution test for site-specific release isoniazid pellets in USP apparatus 3 (reciprocating cylinder):
Amita Joshi1, Swati Pund, Manish Nivsarkar
1B V Patel PERD Centre, Department of Pharmaceutics, Ahmedabad, India.
Summary
This study optimizes isoniazid drug release from site-specific pellets using Response Surface Methodology (RSM). Optimized conditions accurately predict drug release, ensuring robust dissolution testing for novel formulations.
Area of Science:
- Pharmaceutical Sciences
- Drug Delivery Systems
Background:
- Isoniazid is a key anti-tuberculosis drug.
- Novel site-specific release formulations aim to improve drug efficacy and patient compliance.
- Standardized dissolution testing is crucial for quality control of pharmaceutical products.
Purpose of the Study:
- To predict and optimize drug release from novel site-specific release isoniazid pellets.
- To establish robust dissolution testing conditions using Response Surface Methodology (RSM).
- To validate a mathematical model for predicting drug release profiles.
Main Methods:
- Preparation of site-specific release isoniazid pellets via extrusion-spheronization and aqueous coating.
- Application of Response Surface Methodology (RSM) with a 3(2) full factorial design.
- Investigation of dissolution medium volume and reciprocation rate effects on drug release in USP Apparatus 3.
Main Results:
- Both dissolution medium volume and reciprocation rate significantly impact isoniazid release.
- A second-order polynomial model accurately predicted drug release within the optimized region.
- Optimized conditions yielded dissolution data closely matching predicted values.
Conclusions:
- The developed mathematical model is robust and accurate for optimizing dissolution test conditions.
- This approach facilitates reliable quality control for site-specific release isoniazid pellets.
- The study demonstrates the utility of RSM in pharmaceutical formulation development and dissolution testing.
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