| Clinical data | |
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| ATC code | none |
| Identifiers | |
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| Synonyms | Eseroline |
| CAS Number |
469-22-7 |
| PubChem (CID) | 119198 |
| ChemSpider | 106485 |
| ChEBI | CHEBI:48845 |
| Chemical and physical data | |
| Formula | C13H18N2O |
| Molar mass | 218.295 g/mol |
| 3D model (Jmol) | Interactive image |
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Eseroline is a drug which acts as an opioid agonist. It is a metabolite of the acetylcholinesterase inhibitor physostigmine but unlike physostigmine, the acetylcholinesterase inhibition produced by eseroline is weak and easily reversible, and it produces fairly potent analgesic effects mediated through the μ-opioid receptor. This mixture of activities gives eseroline an unusual pharmacological profile, although its uses are limited by side effects such as respiratory depression and neurotoxicity.