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. 1994 May;37(5):445–452. doi: 10.1111/j.1365-2125.1994.tb05712.x

Dose-related effects of ibuprofen on pain-related potentials.

G Kobal 1, C Hummel 1, M Gruber 1, G Geisslinger 1, T Hummel 1
PMCID: PMC1364900  PMID: 8054250

Abstract

1. The aim of this study was to investigate the dose-related effects of ibuprofen (placebo, 400 and 800 mg rac-ibuprofen [Aktren], administered orally) on experimentally-induced tonic and phasic pain. 2. Eighteen volunteers participated in this randomized, double-blind, three-fold cross-over study. Measurements were obtained before and 90 min after administration of the drugs. Phasic pain was produced by CO2 pulses of two concentrations applied to the right nostril. The left nostril was stimulated with a constant stream of dry air which produced a tonic painful sensation described as dull and burning. Subjects rated the intensity of the painful stimuli by means of visual analogue scales. In addition, chemo-somatosensory event-related potentials (CSSERP) were also recorded in response to phasic painful CO2 stimuli. 3. While mean intensity estimates of both tonic and phasic painful stimuli showed a non-significant dose-related decrease, a statistically significant dose-related decrease was observed for CSSERP amplitudes. 4. In conclusion, in order to investigate analgesic drug effects, CSSERP appear to be a more sensitive measure compared with psychophysically obtained responses.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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