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| __NOTOC__
| | #REDIRECT [[Metoprolol tartrate#Structure]] |
| {{Metoprolol}}
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| {{CMG}}
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| Lopressor, metoprolol [[tartrate]] USP, is a selective [[beta1]]-adrenoreceptor blocking agent, available as 50- and 100-mg tablets for oral administration and in 5-mL ampuls for intravenous administration. Each ampul contains a sterile solution of metoprolol [[tartrate]] USP, 5 mg, and sodium chloride USP, 45 mg, and water for [[injection]] USP. Metoprolol [[tartrate]] USP is (±)-1-(Isopropylamino)-3-[p-(2-methoxyethyl)phenoxy]-2-propanol L-(+)-[[tartrate]] (2:1) salt, and its structural formula is:
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| |[[File:Metoprolol describtion.JPG|600px|thumb]]
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| Metoprolol [[tartrate]] USP is a white, practically odorless, crystalline powder with a molecular weight of 684.82. It is very soluble in water; freely soluble in [[methylene chloride]], in [[chloroform]], and in [[alcohol]]; slightly soluble in [[acetone]]; and insoluble in [[ether]].
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| Inactive Ingredients: Tablets contain cellulose compounds, colloidal silicon dioxide, D&C Red No. 30 aluminum lake (50-mg tablets), FD&C Blue No. 2 aluminum lake (100-mg tablets), lactose, magnesium stearate, polyethylene glycol, propylene glycol, povidone, sodium starch glycolate, talc, and titanium dioxide.<ref name="dailymed.nlm.nih.gov">{{Cite web | last = | first = | title = LOPRESSOR (METOPROLOL tartrate) TABLET [NOVARTIS PHARMACEUTICALS CORPORATION] | url =http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=bb05420c-fd24-4672-9f62-fdd313819287 | publisher = | date = | accessdate = }}</ref>
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| ==References==
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| {{Reflist}}
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| {{FDA}}
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| [[Category:Antianginals]]
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| [[Category:Antiarrhythmic agents]]
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| [[Category:Antihypertensive agents]]
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| [[Category:Antimigraine drugs]]
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| [[Category:Beta blockers]]
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| [[Category:Cardiovascular Drugs]]
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