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| __NOTOC__
| | #REDIRECT [[Losartan#Pharmacology]] |
| {{Losartan}}
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| {{CMG}}; {{AE}} {{SS}}
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| ==Description==
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| COZAAR (losartan potassium) is an angiotensin II receptor (type AT1) antagonist. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt.
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| Its empirical formula is C22H22ClKN6O, and its structural formula is:
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| {|
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| |[[File:Losartan3D.png|thumb|800px]]
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| |}
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| {|
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| |[[File:Losartan01.jpg|thumb|800px]]
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| |}
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| Losartan potassium is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. | |
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| COZAAR is available as tablets for oral administration containing either 25 mg, 50 mg or 100 mg of losartan potassium and the following inactive ingredients: microcrystalline cellulose, lactose hydrous, pregelatinized starch, magnesium stearate, hydroxypropyl cellulose, hypromellose, and titanium dioxide.
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| COZAAR 25 mg, 50 mg and 100 mg tablets contain potassium in the following amounts: 2.12 mg (0.054 mEq), 4.24 mg (0.108 mEq) and 8.48 mg (0.216 mEq), respectively. COZAAR 25 mg, COZAAR 50 mg, and COZAAR 100 mg may also contain carnauba wax.<ref name="dailymed.nlm.nih.gov">{{Cite web | last = | first = | title = COZAAR (LOSARTAN POTASSIUM) TABLET, FILM COATED [MERCK SHARP & DOHME CORP.] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=5ac32c20-169d-475a-fc8a-934f758d6ab0 | publisher = | date = | accessdate = 20 February 2014 }}</ref>
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| ==References==
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| {{Reflist}}
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| {{Angiotensin II receptor antagonists}}
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| [[Category:Alcohols]]
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| [[Category:Angiotensin II receptor antagonists]]
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| [[Category:Imidazoles]]
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| [[Category:Organochlorides]]
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| [[Category:Tetrazoles]]
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| [[Category:Biphenyls]]
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| [[Category:Cardiovascular Drugs]]
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| [[Category:Drugs]]
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