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  3. Orphenadrine hydrochloride

Orphenadrine hydrochloride 

Cat. No.: HY-B1126
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Orphenadrine hydrochloride is an uncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist with Ki of 6.0 ±0.7 μM.

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Orphenadrine hydrochloride Chemical Structure

Orphenadrine hydrochloride Chemical Structure

CAS No. : 341-69-5

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Description

Orphenadrine hydrochloride is an uncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist with Ki of 6.0 ±0.7 μM. IC50 value: 6.0 ±0.7 μM (Ki) Target: NMDA Receptor Orphenadrine has been used as an antiparkinsonian, antispastic and analgesic drug. Orphenadrine inhibits [3H]MK-801 binding to the phencyclidine (PCP) binding site of the N-methyl-D-aspartate (NMDA)-receptor in homogenates of postmortem human frontal cortex with a Ki-value of 6.0 ±0.7 μM. The NMDA receptor antagonistic effects of orphenadrine were assessed using concentration- and patch-clamp techniques on cultured superior colliculus neurones. Orphenadrine blocked open NMDA receptor channels with fast kinetics and in a strongly voltage-dependent manner. The IC50-value against steady state currents at -70 mV was 16.2 ± 1.6 μM (n = 6). [1]. Orphenadrine competitively inhibited [3H]nisoxetine binding in rat vas deferens membranes (Ki = 1.05 ±0.20 μM). It can be concluded that orphenadrine, at low micromolar concentrations, interacts with the noradrenaline reuptake system inhibiting its functionality and thus potentiating the effect of noradrenaline [2].

Molecular Weight

305.84

Formula

C₁₈H₂₄ClNO

CAS No.
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Orphenadrine hydrochloride
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