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Updated: May 3, 2026

Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
A new method for evaluating the dissolution of orodispersible films
Yiran Xia1, Fang Chen, Huiping Zhang
1National Pharmaceutical Engineering Research Center, China State Institute of Pharmaceutical Industry , Zhangjiang Hi-Tech Park, Shanghai , People's Republic of China.
A novel flow-through dissolution apparatus was developed for orodispersible films (ODFs). This innovative method offers reproducible and discriminating dissolution data, simulating oral cavity conditions for ODFs.
Area of Science:
- Pharmaceutical Technology
- Drug Delivery Systems
- Analytical Chemistry
Background:
- Orodispersible films (ODFs) require specialized dissolution testing methods.
- Existing methods may not accurately simulate oral cavity conditions or offer sufficient discrimination.
- Limited dissolution medium and automated sampling are desirable features for ODF analysis.
Purpose of the Study:
- To develop and evaluate a new dissolution apparatus specifically designed for orodispersible films (ODFs).
- To assess the apparatus's ability to simulate oral cavity flow conditions and provide reproducible, discriminating dissolution data.
- To compare the performance of the new apparatus against the Chinese Pharmacopeia dissolution method.
Main Methods:
- Development of a novel flow-through cell dissolution apparatus.
- Utilizing a limited amount of dissolution medium.
- Implementing automated sample collection at short time intervals.
- Simulating oral cavity flow conditions during dissolution testing.
Main Results:
- The developed apparatus demonstrated reproducible dissolution data for ODFs.
- The method exhibited a remarkably discriminating capability compared to the Chinese Pharmacopeia method.
- The apparatus effectively simulated the dynamic flow conditions of the oral cavity.
- The system requires a minimal volume of dissolution medium.
Conclusions:
- The proposed dissolution apparatus and method are highly suitable for evaluating the dissolution of orodispersible films (ODFs).
- The innovative design offers advantages in terms of medium volume, sampling automation, and discriminatory power.
- The method's applicability may extend to other fast-dissolving solid dosage forms, enhancing dissolution testing protocols.
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