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| __NOTOC__
| | #REDIRECT [[Digoxin#Structure]] |
| {{Digoxin}}
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| {{CMG}}; {{AE}} {{AK}}
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| '''''For patient information, click <u>[[Digoxin (patient information)|here]]'''''</u>.
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| == Description==
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| Digoxin is one of the cardiac (or [[digitalis]]) [[glycosides]], a closely related group of drugs having in common specific effects on the myocardium. These drugs are found in a number of plants. Digoxin is extracted from the leaves of Digitalis lanata. The term “digitalis” is used to designate the whole group of glycosides. The glycosides are composed of 2 portions: a sugar and a cardenolide (hence “glycosides”).
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| Digoxin is described chemically as (3β,5β,12β)-3-[(O-2,6-dideoxy-β-D-ribo-hexopyranosyl-(1→4)-O-2,6-dideoxy-β-D-ribo-hexopyranosyl-(1→4)-2,6-dideoxy-β-D-ribo-hexopyranosyl)oxy]-12,14-dihydroxy-card-20(22)-enolide. Its molecular formula is C41H64O14, its molecular weight is 780.95, and its structural formula is:
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| {|
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| |[[image:diginj9.png|600px|thumb]]
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| |}
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| Digoxin exists as clear to white odorless crystals or white, odorless crystalline powder that melts with decomposition above 230°C. The drug is practically insoluble in water and in ether; slightly soluble in diluted (50%) alcohol and in chloroform; and freely soluble in pyridine.
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| Digoxin injection USP is a sterile solution of digoxin for intravenous or intramuscular injection. Each mL contains: digoxin 0.25 mg, propylene glycol 40% (v/v), anhydrous ethanol 10% (v/v), dibasic sodium phosphate 0.3% (w/v) and anhydrous citric acid 0.08% (w/v) to adjust pH between 6.8 and 7.2, and water for injection. Dilution is not required.
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| ==References==
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| {{Reflist|2}}
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| http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=58f45aba-ff6f-43cc-bb88-be40a9f7beda
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| [[Category:Cardiovascular Drugs]]
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| [[Category:Drugs]]
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