Related Experiment Video
Updated: Aug 13, 2026

Functional Assessment of Intestinal Motility and Gut Wall Inflammation in Rodents: Analyses in a Standardized Model of Intestinal Manipulation
Published on: September 11, 2012
A scintigraphic study to investigate the potential for altered gut distribution of loperamide from a
A L Connor1, H Wray, J Cottrell
1Pharmaceutical Profiles Limited, Mere Way, Ruddington Fields, Ruddington, NG11 6JS, Nottingham, UK.
Abstract:
A loperamide simethicone combination formulation has recently been demonstrated to have significant clinical advantages compared to loperamide alone in the relief of diarrhoea and related symptoms. The product visualisation technique of gamma scintigraphy has been used to investigate the interaction of the formulation with the heterogenous environment of the human gut in a group of 12 healthy volunteers. The results suggest that changes in the intestinal kinetics of loperamide from the combination product, e.g. jejunal coating, could be contributing to the improved efficacy.
Related Concept Videos
Drugs for Treatment of Diarrhea-Predominant IBS
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...
Drugs for Treatment of Constipation-Predominant IBS
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Lower GI Series: Barium Enema
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...

