Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2006-6-8
pubmed:abstractText
Visceral pain can be difficult to treat with classical mu-opioid agonists and it has been suggested to use opioids with distinct pharmacological profiles. In animal experiments, oxycodone has shown different effects compared to morphine, and clinical observations have shown that oxycodone may occasionally be superior to, e.g., morphine in the treatment of visceral pain. In the current study, we randomised 24 healthy subjects to treatment with either morphine (30 mg), oxycodone (15 mg) or placebo in a crossover study. The experimental pain model involved multi-modal (mechanical, thermal and electrical) pain tests in the skin, muscles and viscera. The pain tests were carried out at baseline and 30, 60 and 90 min after oral administration of the drugs. The model showed effect of the two opioids compared to placebo on all stimulus modalities in all three types of tissues (all P values <0.001). Both opioids attenuated the sensory response mainly to painful stimulations. Morphine and oxycodone were equipotent in pain modulation of the skin and muscles, but oxycodone had superior analgesic effect to both morphine and placebo on the mechanical (P<0.001) and thermal (P<0.001) stimulations of the oesophagus. In conclusion, the multi-modal and tissue-differentiated pain model could link findings from animal experiments to clinical findings. A different pharmacological profile of oxycodone compared to that of morphine was shown, and thus oxycodone may be a useful alternative to morphine in the treatment of visceral pain syndromes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1872-6623
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
123
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
28-36
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:16600508-Adult, pubmed-meshheading:16600508-Analgesics, Opioid, pubmed-meshheading:16600508-Cross-Over Studies, pubmed-meshheading:16600508-Dose-Response Relationship, Drug, pubmed-meshheading:16600508-Electroshock, pubmed-meshheading:16600508-Esophagus, pubmed-meshheading:16600508-Female, pubmed-meshheading:16600508-Hot Temperature, pubmed-meshheading:16600508-Humans, pubmed-meshheading:16600508-Male, pubmed-meshheading:16600508-Models, Neurological, pubmed-meshheading:16600508-Morphine, pubmed-meshheading:16600508-Muscle, Skeletal, pubmed-meshheading:16600508-Nociceptors, pubmed-meshheading:16600508-Organ Specificity, pubmed-meshheading:16600508-Oxycodone, pubmed-meshheading:16600508-Pain, pubmed-meshheading:16600508-Pain Measurement, pubmed-meshheading:16600508-Pain Threshold, pubmed-meshheading:16600508-Pressure, pubmed-meshheading:16600508-Skin
pubmed:year
2006
pubmed:articleTitle
A comparative study of oxycodone and morphine in a multi-modal, tissue-differentiated experimental pain model.
pubmed:affiliation
Center for Visceral Biomechanics and Pain, Department of Gastroenterology, University Hospital Aalborg, Denmark. cst@smi.auc.dk
pubmed:publicationType
Journal Article, Comparative Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't, Validation Studies