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Orphenadrine (Orphenadrine Citrate) - Summary

 
 



ORPHENADRINE SUMMARY

ORPHENADRINE CITRATE INJECTION USP
Rx only

Orphenadrine Citrate Injection is a sterile aqueous solution of orphenadrine citrate. It is intended for intravenous or intramuscular administration. Orphenadrine citrate is the citrate salt of orphenadrine and occurs as a white, crystalline powder having a bitter taste. It is practically odorless, sparingly soluble in water and slightly soluble in alcohol.

Orphenadrine citrate is indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute, painful musculo-skeletal conditions. The mode of action of this drug has not been clearly identified, but may be related to its analgesic properties. Orphenadrine citrate does not directly relax tense skeletal muscles in man.


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NEWS HIGHLIGHTS

Published Studies Related to Orphenadrine

Opiate sparing effect of fixed combination of diclophenac and orphenadrine after unilateral total hip arthroplasty: A double-blind, randomized, placebo-controlled, multi-centre clinical trial. [2010.11]
Multimodal pain management combines analgesics to improve analgesia and reduce side effects... This study demonstrates that Neodolpasse((R)) Infusion Solution significantly reduces PCA analgesic requirements without compromising analgesic effectiveness and safety in THA patients.

Opiate sparing effect of fixed combination of diclophenac and orphenadrine after unilateral total hip arthroplasty: A double-blind, randomized, placebo-controlled, multi-centre clinical trial. [2010.10.08]
Multimodal pain management combines analgesics to improve analgesia and reduce side effects... This study demonstrates that Neodolpasse((R)) Infusion Solution significantly reduces PCA analgesic requirements without compromising analgesic effectiveness and safety in THA patients.

Opiate sparing effect of fixed combination of diclophenac and orphenadrine after unilateral total hip arthroplasty: A double-blind, randomized, placebo-controlled, multi-centre clinical trial. [2010]
Multimodal pain management combines analgesics to improve analgesia and reduce side effects... This study demonstrates that Neodolpasse(®) Infusion Solution significantly reduces PCA analgesic requirements without compromising analgesic effectiveness and safety in THA patients.

[Diclofenac/orphenadrine as a combined analgetic in post-operative relief of pain] [2008.09.28]
The authors compared the potency, safety and tolerability of combined infusion containing non-steroid anti-inflammation diclofenac and central muscle relaxant orphenadrine, and those of tramadol HCl, during postoperative pain relief after low and middle category operations... Based on all this, diclofenac-orphenadrine infusion is considered an effective and safe analgesic which is easy to administer and to combine in pain relief after small and middle category operations.

Comparison of the analgesic effects of a fixed-dose combination of orphenadrine and diclofenac (Neodolpasse) with its single active ingredients diclofenac and orphenadrine: a placebo-controlled study using laser-induced somatosensory-evoked potentials from capsaicin-induced hyperalgesic human skin. [2005]
OBJECTIVE: The aim of this study was to investigate the analgesic efficacy of Neodolpasse, a fixed-dose combination of orphenadrine and diclofenac, compared with those of its single active ingredients in a human pain model... CONCLUSION: This study demonstrated the efficacy of Neodolpasse in a human pain model. The observed effect was mainly caused by central mechanisms and was found to be superior for the fixed-dose combination of orphenadrine and diclofenac compared with the individual ingredients. Both components contributed to the effect of the combination in an additive fashion, which can be explained by the different molecular mechanisms of action of each drug.

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Clinical Trials Related to Orphenadrine

Patient Preferences, Analgesic Delivery Method and Pain Reduction in Spine Patients [Not yet recruiting]
The investigators will conduct a randomized double blind study, to determine whether patient analgesic delivery mode preference affects pain reduction quality in non-surgical spine patients.

The patients will receive both intra-muscular and oral non-narcotic analgesics and placebo. During the study period, pain reduction parameters will be collected. At the end of the study period, the investigators will attempt to find a correlation between pre-study patient preferences and the quality of the pain reduction achieved.

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Page last updated: 2013-02-10

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