Orphenadrine
Muscle relaxant drug / From Wikipedia, the free encyclopedia
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Orphenadrine (sold under many brand names)[1] is an anticholinergic drug of the ethanolamine antihistamine class; it is closely related to diphenhydramine. It is a muscle relaxant that is used to treat muscle pain and to help with motor control in Parkinson's disease, but has largely been superseded by newer drugs.[citation needed] It is considered a dirty drug due to its multiple mechanisms of action in different pathways.[citation needed] It was discovered and developed in the 1940s.
Quick Facts Clinical data, Trade names ...
Clinical data | |
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Trade names | Generic; many brand names[1] |
AHFS/Drugs.com | Monograph |
MedlinePlus | a682162 |
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Routes of administration | Oral, intravenous, intramuscular |
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Pharmacokinetic data | |
Bioavailability | 90% |
Protein binding | 95% |
Metabolism | Hepatic demethylation |
Elimination half-life | 13–20 hours[2] |
Excretion | Renal and biliary |
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ECHA InfoCard | 100.001.372 |
Chemical and physical data | |
Formula | C18H23NO |
Molar mass | 269.388 g·mol−1 |
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