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The H 2 receptor antagonists are a class of drugs used to block the action of histamine on parietal cells in the stomach, decreasing the production of acid by these cells. H 2 antagonists are used in the treatment of dyspepsia, although they have been surpassed in popularity by the more effective [1] proton pump inhibitors.
Proton-pump inhibitors have largely superseded the H 2-receptor antagonists, a group of medications with similar effects but a different mode of action, and heavy use of antacids. [3] A potassium-competitive acid blocker (PCAB) revaprazan was marketed in Korea as an alternative to a PPI.
Use in pregnancy and breastfeeding is of unclear safety. [5] It works by blocking H + /K +-ATPase in the parietal cells of the stomach. [3] Dexlansoprazole was approved for medical use in the United States in 2009. [3] In Canada in 2016, it was the most expensive Proton-pump inhibitor (PPI) available. [4]
Effectiveness is similar to other proton pump inhibitors (PPIs). [8] It is taken by mouth. [6] Common side effects include constipation, feeling weak, and throat inflammation. [6] Serious side effects may include osteoporosis, low blood magnesium, Clostridioides difficile infection, and pneumonia. [6] Use in pregnancy and breastfeeding is of ...
Ball-and-stick model of cimetidine, the prototypical H 2 receptor antagonist. H 2 antagonists, sometimes referred to as H2RAs [1] and also called H 2 blockers, are a class of medications that block the action of histamine at the histamine H 2 receptors of the parietal cells in the stomach. This decreases the production of stomach acid.
Proton pump inhibitors (PPIs) block the gastric hydrogen potassium ATPase (H + /K + ATPase) and inhibit gastric acid secretion. These drugs have emerged as the treatment of choice for acid-related diseases, including gastroesophageal reflux disease (GERD) and peptic ulcer disease. PPIs also can bind to other types of proton pumps such as those ...
The Pasadena Jewish Temple & Center burns during the Eaton fire in Pasadena, CA, on Jan. 7, 2025. A ferocious wildfire in a Los Angeles suburb devoured buildings and sparked panicked evacuations ...
Lansoprazole is used for treatment of: [3] Ulcers of the stomach and duodenum, and NSAID-induced ulcers; Helicobacter pylori infection, alongside antibiotics (adjunctive treatment), treatment to kill H. pylori causing ulcers or other problems involves using two other drugs besides lansoprazole known as "triple therapy", and involves taking twice daily for 10 or 14 days lansoprazole ...