Related Experiment Video
Updated: May 14, 2025

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice
Published on: July 12, 2018
Drug dissolution problems in ostomy patients: a chart review and patient interview analysis
Yvonne Remane1,2, Maria Astrid Stolz1,2, Katrin Heinitz1,2
1Pharmacy, Leipzig University Medical Center and Medical Faculty, Leipzig, Germany.
Many ostomy patients find undissolved medications in stoma bags, impacting drug effectiveness. This study highlights the need for better patient education on medication formulations and ostomy management.
Area of Science:
- Pharmacokinetics
- Drug delivery
- Ostomy care
Background:
- Shortened intestinal transit time in ostomy patients can alter oral drug absorption.
- Drug dissolution and release may be incomplete, leading to undissolved medication in stoma output.
Purpose of the Study:
- To identify undissolved drugs in stoma bags among ostomy patients.
- To correlate drug formulations with observed issues.
- To assess patient understanding of medication behavior post-ostomy.
Main Methods:
- Patient chart review to identify potentially problematic drug formulations.
- Patient interviews to ascertain presence of undissolved drugs, changes in efficacy/therapy, and patient knowledge.
- Analysis of formulation characteristics and patient-reported outcomes.
Main Results:
- 22.4% of prescribed formulations were deemed critical for pharmacokinetic release.
- 22% of interviewed patients reported seeing undissolved drugs in their stoma bags.
- 14% noted altered drug efficacy, and 12% experienced therapy changes; over 60% lacked information on this issue.
Conclusions:
- A significant number of drug formulations pose challenges for ostomy patients.
- Enhanced patient education and resources are crucial for managing drug release issues in ostomy care.
- Addressing formulation-related problems can improve therapeutic outcomes for ostomy patients.
More Related Videos
10:20In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids
Published on: November 18, 2022
06:43Functional Assessment of Intestinal Tight Junction Barrier and Ion Permeability in Native Tissue by Ussing Chamber Technique
Published on: May 26, 2021
Related Concept Videos
Ostomy Care
An ostomy is a surgical procedure that creates an artificial opening from the intestines to the outside of the body, allowing for the rerouting of effluent. This opening is known as a stoma. A stoma usually protrudes above the skin surface, appearing pink or red, moist, and round, and it lacks nerve sensations.
There are different types of ostomies, including colostomies, ileostomies, and urostomies:
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
Factors Influencing Drug Absorption: Drug Dissolution
Factors Affecting Dissolution: Drug pKa, Lipophilicity and GI pH
A drug's pKa and the pH of the gastrointestinal (GI) tract play crucial roles...
Theories of Dissolution: Diffusion Layer Model
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
Factors Affecting Dissolution: Particle Size and Effective Surface Area