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| Clinical data |
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| Synonyms | vitamin B12, vitamin B-12 |
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| AHFS/Drugs.com | Monograph |
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Routes of administration | by mouth, sublingual, IV,IM, intranasal |
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| ATC code | |
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| Legal status |
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| Legal status | - UK: POM (Prescription only)
- US: OTC
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| Pharmacokinetic data |
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| Bioavailability | Readily absorbed in distal half of the ileum |
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| Protein binding | Very high to specifictranscobalamins plasma proteins Binding ofhydroxocobalamin is slightly higher than cyanocobalamin. |
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| Metabolism | liver |
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| Eliminationhalf-life | Approximately 6 days (400 days in the liver) |
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| Excretion | kidney |
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| Identifiers |
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| IUPAC name[show] |
| CAS Number | |
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| Chemical and physical data |
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| Formula | C63H88CoN14O14P |
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| Molar mass | 1355.37 g/mol |
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