Related Experiment Videos
[The bioavailability of trapidil from suppositories (author's transl)]
Die Pharmazie
|December 1, 1981
Summary
The bioavailability of Trapidil from Rosupol U suppositories was lower than from Witepsol H 15 suppositories in most subjects. In vitro drug release did not fully predict in vivo performance.
Area of Science:
- Pharmacokinetics
- Drug Delivery Systems
- Pharmaceutical Sciences
Context:
- Drug formulation impacts therapeutic efficacy.
- Suppository bases influence drug absorption.
- Understanding in vivo-in vitro correlations is crucial for drug development.
Purpose:
- To compare the bioavailability of Trapidil from two different suppository bases: Rosupol U and Witepsol H 15.
- To evaluate the in vivo performance of Trapidil delivery via suppositories.
Summary:
- A study involving five healthy individuals assessed Trapidil bioavailability from Rosupol U versus Witepsol H 15 suppositories.
- Results indicated inferior Trapidil availability from Rosupol U in four out of five subjects.
- Observed in vivo drug release differences were less pronounced than in vitro findings.
Impact:
- Highlights potential formulation-dependent variations in Trapidil bioavailability.
- Suggests limitations in predicting in vivo drug release solely based on in vitro dissolution for these suppository systems.
- Informs future suppository formulation development for Trapidil and similar drugs.