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Nizatidine is a histamine H 2 receptor antagonist that inhibits stomach acid production, and is commonly used in the treatment of peptic ulcer disease and gastroesophageal reflux disease. [2] It was patented in 1980 and approved for medical use in 1988. [3] [4] It was developed by Eli Lilly.
Cimetidine was the prototypical histamine H 2 receptor antagonist from which later drugs were developed. Cimetidine was the culmination of a project at Smith, Kline & French (SK&F; now GlaxoSmithKline) by James W. Black, C. Robin Ganellin, and others to develop a histamine receptor antagonist that would suppress stomach acid secretion.
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Proton-pump inhibitors have largely superseded the H 2-receptor antagonists, a group of medications with similar effects but a different mode of action, and heavy use of antacids.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.
Clemastine is an antihistamine with anticholinergic and sedative effects. Antihistamines competitively bind to histamine receptor sites, thus reducing the neurotransmitter's effects. [9]
Since Tums is an over-the-counter drug, it is not considered a pharmaceutical-grade treatment (does not require a prescription). Prescription strength acid reflux medications often contain proton-pump inhibitors (PPI) or histamine H 2 receptor blockers (H 2 blockers, H 2 antagonists). [5]
Ranitidine has 10% of the affinity that cimetidine has to CYP450, so it causes fewer side effects, but other H 2 blockers famotidine and nizatidine have no CYP450 significant interactions. [131] Ranitidine was introduced in 1981, and was the world's biggest-selling prescription drug by 1987. [132]
Pages in category "H2 receptor antagonists" The following 20 pages are in this category, out of 20 total. This list may not reflect recent changes. ...