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Updated: Jun 28, 2026

Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
Fully-automated system for dissolution rate of solid oral dosage forms according to the paddle method
1Department of Pharmaceutical Development Boehringer Ingelheim KG Ingelheim am Rhein D55216 Germany.
The AUTO DISS((R)) system automates solid oral dosage form dissolution testing, enhancing efficiency for pharmaceutical quality control. This rugged and accurate system supports continuous testing of multiple batches and controlled-release drug analysis.
Area of Science:
- Pharmaceutical Science
- Analytical Chemistry
- Drug Delivery Systems
Background:
- Dissolution testing is critical for evaluating solid oral dosage forms.
- Manual dissolution testing is time-consuming and labor-intensive.
- Pharmacopoeial methods (USP, EP) are standard for dissolution analysis.
Purpose of the Study:
- To describe a fully-automated system, AUTO DISS((R)), for dissolution testing.
- To evaluate the system's performance for routine pharmaceutical quality control.
- To demonstrate its capability for testing controlled-release drug formulations.
Main Methods:
- Utilized the paddle method as per USP and European Pharmacopoeia standards.
- Implemented automated processes for dissolution medium filling, sample addition, and vessel cleaning.
- Integrated an automatic sampler for on-line active ingredient concentration determination.
- Demonstrated automated buffer changes for simulated gastric to intestinal fluid transitions.
Main Results:
- The AUTO DISS((R)) system enables continuous testing of up to twenty batches.
- Simultaneous analysis of six dosage units per batch is achievable.
- The system accurately performs dissolution testing for both immediate and controlled-release formulations.
- On-line data evaluation and documentation capabilities were confirmed.
Conclusions:
- The AUTO DISS((R)) system provides a robust and accurate solution for automated dissolution testing.
- It significantly enhances efficiency and throughput in pharmaceutical quality control.
- The system is suitable for a wide range of solid oral dosage forms, including controlled-release products.
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