ArticleThe AAPS journal2025
Impact of Gastric Emptying Kinetics on Dipyridamole Dissolution Using a Gastrointestinal Simulator.
Article in The AAPS journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Gastric emptying plays a crucial role in the dissolution and absorption of oral drugs, particularly those with pH-dependent solubility, such as dipyridamole. This study evaluates the impact of gastric emptying kinetics on dipyridamole dissolution using a Gastrointestinal Simulator. A dynamic dissolution model incorporating first-order and Weibull kinetics was applied to simulate different gastric emptying profiles. Results indicate that dissolution behavior is significantly influenced by the rate and pattern of gastric emptying, affecting drug solubility and potential bioavailability. The Weibull model provided a more flexible fit to experimental data, but the external control shows that significant differences exist between theorical and experimental gastric volumes. These findings highlight the importance of integrating physiologically relevant gastric emptying models into biopharmaceutical assessments to improve the prediction of in vivo drug performance. This approach could enhance the design of oral formulations by optimizing dissolution profiles for weak base drugs.
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