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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.
They are the most potent inhibitors of acid secretion available. The group followed and has largely superseded another group of pharmaceuticals with similar effects, but a different mode of action, called H 2-receptor antagonists. These drugs are among the most widely sold drugs in the world, and are generally considered effective. [3]
As of March 2017, benefits outweighed risks when PPIs are used appropriately, but when used inappropriately, modest risks become important. [ 34 ] [ 36 ] They recommend that PPIs should be used at the lowest effective dose in people with a proven indication, but discourage dose escalation and continued chronic therapy in people unresponsive to ...
Common side effects include headache, abdominal pain, diarrhea or constipation, and dizziness. [4] Serious side effects may include pneumonia and seizures. [4] [5] Use in pregnancy appears safe but has not been well studied, while use during breastfeeding is not recommended. [1] Famotidine was patented in 1979 and came into medical use in 1985. [6]
The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.
Blood pressure is a crucial indicator of our overall health and well-being. Prolonged high blood pressure, or hypertension, can lead to severe complications such as heart disease, stroke, kidney ...
Veronica Brown lived with chronic fatigue, depression, and anxiety for over 10 years before she learned they were early signs of Parkinson's disease. Here's how she found relief after diagnosis.
Hydroxyzine works by blocking the effects of histamine. [9] It is a first-generation antihistamine in the piperazine family of chemicals. [8] [4] Common side effects include sleepiness, headache, and dry mouth. [8] [9] Serious side effects may include QT prolongation. [9] It is unclear if use during pregnancy or breastfeeding is safe. [8]