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Brand names,
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Analogs
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Brand Names Mixture
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Chemical_Formula
C18H23NO
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RX_link
http://www.rxlist.com/cgi/generic/orphen.htm
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fda sheet
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msds (material safety sheet)
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Synthesis Reference
No information avaliable
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Molecular Weight
269.381 g/mol
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Melting Point
156-157 oC
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H2O Solubility
Sparingly soluble in water
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State
Solid
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LogP
4.034
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Dosage Forms
Tablet (extended-release)
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Indication
Indicated for the treatment of Parkinson's disease.
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Pharmacology
Orphenadrine is indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute painful musculoskeletal conditions. Orphenadrine is an anticholinergic with a predominantly central effect and only a weak peripheral effect. In addition, it has mild antihistaminic and local anaesthetic properties. Parkinson's syndrome is the consequence of a disturbed balance between cholinergic and dopaminergic neurotransmission in the basal ganglia caused by a decrease in dopamine. Orphenadrine restores the physiological equilibrium and has a favourable effect on the rigidity and tremor of Parkinson's disease and Parkinsonian syndromes. The effect is somewhat less on bradykinesia.
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Absorption
Orphenadrine is almost completely absorbed in the gastrointestinal tract.
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side effects and Toxicity
Oral, mouse LD50 = 100 mg/kg; oral, rat LD50 = 255 mg/kg
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Patient Information
No information avaliable
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Organisms Affected
Humans and other mammals