Talk:Esomeprazole

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What I have drawn is, actually, the correct structure of S-omeprazole. The S designation of this molecule is with respect to its structure in vivo - where the sulfinyl moiety is ionised, and there is an additional hydrogen substituent off the chiral sulfur. Under these circumstances the stereochemistry is clearly S. So whilst, technically, this drawing may be R, it actually does represent the structure of S-omeprazole.Techelf 11:14, 21 Oct 2004 (UTC)

I do not agree. Omeprazole is the compound we have in the Nexium bottle. The formula here represents R-omaprazole, therefore it should be fixed. You might make a mistake when redrawing the formula, you pribably did functional group/molecule rotations and have forgotten to follow this motion and change the stereo bond type. Try to imagine the molecule in 3D-space :). If I'm wrong (I'm almost sure I'm not) please give me some reasonable explanation. Regards, Mykhal 14:33, 22 Oct 2004 (UTC)

I concede the point and have revised the drawing accordingly. I had initially (wrongly) supposed that the orientation of the substituents off the chiral sulfur was of a trigonal planar configuration; therefore I had assumed that the orientation of the oxygen substituent would not make a difference. In retrospect, I've realised that the sulfur substituents have a tetrahedral configuration; so you are right about the oxygen substituent being inverted - well spotted. Techelf 06:46, 23 Oct 2004 (UTC)

Thank you. I know, this is not obvious, that on the sulfur atom is lone electron pair which is the fourth "substituent" with lowest priority.. Mykhal 08:49, 23 Oct 2004 (UTC)

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The following information from the DrugBank should be incorporated (not copied!) into this article:
"Esomeprazole is a compound that inhibits gastric acid secretion and is indicated in the treatment of gastroesophageal reflux disease (GERD), the healing of erosive esophagitis, and H. pylori eradication to reduce the risk of duodenal ulcer recurrence. Esomeprazole belongs to a new class of antisecretory compounds, the substituted benzimidazoles, that do not exhibit anticholinergic or H2 histamine antagonistic properties, but that suppress gastric acid secretion by specific inhibition of the H+/K+ ATPase enzyme system at the secretory surface of the gastric parietal cell. Because this enzyme system is regarded as the acid (proton) pump within the gastric mucosa, Esomeprazole has been characterized as a gastric acid-pump inhibitor, in that it blocks the final step of acid production. This effect is dose-related and leads to inhibition of both basal and stimulated acid secretion irrespective of the stimulus." [1]

I'll probably do it myself eventually, if no one else does. Fuzzform 02:13, 22 February 2006 (UTC)

[edit] AstraZeneca

Esomeprazole, given the brand name Nexium is a product of the larger corporation AstraZeneca. Nexium is one of twelve other key products that AstraZeneca produces. AstraZeneca’s corporate headquarters is run out of London, England along with a U.S. headquarters in Wilmington, Delaware. AstraZeneca is a major corporation which supports 64,000 employees worldwide with 12,000 from the United States. Thus, making AstraZeneca an influential part of the U.S. economy. To prove this point, in 2005 alone, AstraZeneca made 23.9 billion dollars in sales. (AstraZeneca Pharmaceuticals LP, http://www.astrazeneca-us.com/content/aboutUs/keyFacts.asp) The reason for the success of AstraZeneca is due to its quality workers, research, and production. A number of awards have even been given out to AstraZeneca, including its product of the year achievement and Top 50 Employer award. (AstraZeneca Pharmaceuticals LP, http://www.astrazeneca-us.com/content/aboutUs/awards.asp) These two awards are an example of the efficiency and quality of work that AstraZeneca runs on. There are several other businesses which depend on AstraZeneca. These include Contact Information Centers, Research and Development Facilities, Supply Sites, and Business Centers. (http://www.astrazeneca-us.com/content/aboutUs/usLocations.asp) All of these businesses undoubtedly have even smaller businesses depending on them. As mentioned earlier, several thousands of Americans depend on AstraZeneca for work. Overall, AstraZeneca is a corporation that supports and is depended on by a lot of other small business and individuals. It is another example of one of the many corporations that makes the U.S. economy work.

Sources:

AstraZeneca LP http://www.astrazeneca-us.com/content/aboutUs/keyFacts.asp AstraZeneca LP http://www.astrazeneca-us.com/content/aboutUs/awards.asp AstraZeneca LP http://www.astrazeneca-us.com/content/aboutUs/usLocations.asp —The preceding unsigned comment was added by JKsung (talk • contribs).

What exactly is the point of this, other than advertising AstraZeneca? I am glad you added it to the talk page instead of the article though, and certainly hope you are not intending to do so. If no editors object, I will remove this comment within 24 hours. Fvasconcellos 23:40, 27 October 2006 (UTC)

[edit] Reverting edits

With all of the citations that I provided -- please provide a rationale as to why you keep reverting text which enhances this information? —The preceding unsigned comment was added by Chrisgaffneymd (talk • contribs).

I have replied on your talk page. Fvasconcellos 00:35, 28 October 2006 (UTC)