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| Systematic (IUPAC) name | |
|---|---|
| (5α)-4,5-Epoxy- 3,14-dihydroxy- 17-(2-methoxyethyl) morphinan- 6-one | |
| Identifiers | |
| CAS number | 88939-40-6 |
| ATC code | none |
| PubChem | 5491906 |
| Chemical data | |
| Formula | C 19H23NO5 |
| Mol. mass | 345.39 g/mol |
| Pharmacokinetic data | |
| Bioavailability | ? |
| Metabolism | ? |
| Half life | ? |
| Excretion | ? |
| Therapeutic considerations | |
| Pregnancy cat. | ? |
| Legal status | |
| Routes | ? |
Semorphone (Mr 2264) is an opiate analogue that is an N-substituted derivative of oxymorphone.
Semorphone is a partial agonist at μ-opioid receptors. It is around twice the potency of morphine, but with a ceiling effect on both analgesia and respiratory depression[1] which means that these effects stop becoming any stronger after a certain maximum dose.
It is not currently used in medicine, and is not a controlled drug, although it might be considered to be a controlled substance analogue of oxymorphone on the grounds of its related chemical structure in some jurisdictions such as the USA, Canada, Australia and New Zealand.
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