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Related Concept Videos

Drugs for Peptic Ulcer Disease: Sucralfate as Mucosal Protective Agents01:24

Drugs for Peptic Ulcer Disease: Sucralfate as Mucosal Protective Agents

In the intricate landscape of the gastric lumen, excessive acid secretion disrupts the natural defense mechanisms, weakening the mucus-bicarbonate barrier. This vulnerability allows pepsin to infiltrate epithelial cells, digesting mucosal proteins and triggering erosion, leading to ulcer formation.
In this scenario, mucosal protective agents like sucralfate play an essential role. Sucralfate, a complex of sulfated sucrose and aluminum hydroxide, demonstrates its usefulness in acidic conditions,...
Peptic Ulcer Disease IV: Management01:26

Peptic Ulcer Disease IV: Management

Medical treatment strategies for peptic ulcers encompass various methods. The primary goal of treatment is to diminish gastric acidity and strengthen mucosal defense mechanisms.
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current medication...
Gastroesophageal Reflux Disease II: Clinical Features and Management01:29

Gastroesophageal Reflux Disease II: Clinical Features and Management

Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
Drugs for Treatment of Constipation-Predominant IBS01:21

Drugs for Treatment of Constipation-Predominant IBS

Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
Modified-Release Drug Delivery Systems: Bioavailability01:30

Modified-Release Drug Delivery Systems: Bioavailability

Modified-release (MR) dosage forms are designed to extend drug release over time, thereby maintaining stable plasma concentrations and reducing dosing frequency. However, their bioavailability is typically below 100% due to incomplete drug release and presystemic metabolism, and limitations in drug permeability across the gastrointestinal epithelium, all of which can restrict the fraction of the drug reaching systemic circulation. Consequently, studying the in vivo bioavailability of MR...
Modified-Release Drug Delivery Systems: Overview01:19

Modified-Release Drug Delivery Systems: Overview

Modified-release dosage forms are designed to address the limitations of drugs with short biological half-lives. These forms maintain stable therapeutic drug concentrations over extended periods, reducing the need for frequent dosing. A consistent drug level helps minimize peak-trough fluctuations, which can reduce adverse effects, lower the risk of drug resistance, and improve overall treatment effectiveness.One common type of modified-release form is the extended-release (ER) formulation. ER...

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Related Experiment Videos

Dexlansoprazole MR: a review.

Tiberiu Hershcovici1, Lokesh K Jha, Ronnie Fass

  • 1Neuroenteric Clinical Research Group, Southern Arizona VA Health Care System, Tucson, USA.

Annals of Medicine
|March 4, 2011
PubMed
Summary

Dexlansoprazole MR, a dual delayed-release proton pump inhibitor, effectively heals erosive esophagitis and controls symptoms in GERD patients. It offers higher maintenance rates and can be taken without regard to food, with a well-tolerated side-effect profile.

Area of Science:

  • Gastroenterology
  • Pharmacology
  • Drug Delivery Systems

Background:

  • Proton pump inhibitors (PPIs) are mainstays in treating gastroesophageal reflux disease (GERD).
  • Dexlansoprazole MR represents an advancement in PPI delivery through its dual delayed-release formulation.
  • Previous studies established the efficacy of lansoprazole in managing acid-related disorders.

Purpose of the Study:

  • To evaluate the efficacy of dexlansoprazole MR in healing erosive esophagitis compared to lansoprazole.
  • To assess the maintenance of healed esophageal mucosa and symptom control in patients with GERD.
  • To determine the impact of food intake on dexlansoprazole MR efficacy and tolerability.

Main Methods:

  • Comparative clinical trials were conducted to assess dexlansoprazole MR against lansoprazole and placebo.

Related Experiment Videos

  • Patient outcomes included healing rates of erosive esophagitis and maintenance of esophageal mucosa.
  • Symptom control in non-erosive reflux disease (NERD) was evaluated.
  • Pharmacokinetic studies assessed dexlansoprazole MR absorption with and without food.
  • Main Results:

    • Dexlansoprazole MR demonstrated efficacy in healing erosive esophagitis, comparable to lansoprazole.
    • Significantly higher maintenance rates for healed esophageal mucosa were observed with dexlansoprazole MR versus placebo.
    • Dexlansoprazole MR provided significant symptom control in patients with non-erosive reflux disease.
    • The drug can be administered without regard to food, offering dosing flexibility.

    Conclusions:

    • Dexlansoprazole MR is an effective treatment for erosive esophagitis and GERD symptoms.
    • The dual delayed-release formulation enhances drug delivery and patient convenience.
    • Dexlansoprazole MR is well-tolerated with a side-effect profile similar to lansoprazole.