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Cimetidine, sold under the brand name Tagamet among others, is a histamine H 2 receptor antagonist that inhibits stomach acid production. [ 1 ] [ 9 ] [ 10 ] It is mainly used in the treatment of heartburn and peptic ulcers .
The CLOVA Regimen uses cimetidine, lithium, olanzapine, and valproate with temozolomide in treating glioblastoma. [9] The ReDO project [10] and many others [11] [12] also follow this line of thought as in CUSP9, repurposing older drugs for their anti-cancer effect with simultaneous use of several of them, in cancer treatment. The drug ...
The product's problem was described by The New York Times as being "that a potential cancer-causing contaminant can build up in the drug when stored for long periods." [ 6 ] Heavy marketing expenditures resulted in Zantac being consumed by those who might have satisficed with less harmful alternatives. [ 9 ]
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.
Krienitz finds bacteria in the stomach of people with gastric cancer. [2] Turck feeds dogs Bacillus coli and produces ulcers. [7] 1907 Berkley Moynihan suggests that acid is a cause of ulcers. [1] 1910 Schwartz publishes the excess acid theory of the ulcer, coining the famous phrase "no acid, no ulcer." [2]
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 ]
Cimetidine works by slowing tumor growth; it is a histamine blocker that maintains the body's immune response which aids in the killing of tumor cells. Cimetidine has not been proven to efficiently resolve tumors completely.
In the fields of medicine, biotechnology, and pharmacology, drug discovery is the process by which new candidate medications are discovered. [1]Historically, drugs were discovered by identifying the active ingredient from traditional remedies or by serendipitous discovery, as with penicillin.