Cited by 58Neuroendocrine regulation and behaviorPain Mechanisms and TreatmentsPain Management and Placebo Effect

The Effect of Intranasal Oxytocin Administration on Acute Cold Pressor Pain: A Placebo-Controlled, Double-Blind, Within-Participants Crossover Investigation

Rash, Joshua A., Campbell, Tavis S.·2014·Psychosomatic Medicine

Abstract

BACKGROUND: This study examined the effect of synthetic oxytocin delivered intranasally on acute pain sensitivity using a placebo-controlled, double-blind, within-participant crossover design. METHODS: Thirty-seven (18 were male) pain-free young adults underwent two laboratory sessions separated by 1 week. Each session consisted of baseline, administration, second baseline, pain, and recovery phases, completed in a fixed order. Participants were given an intransal administration of 40 IU oxytocin or placebo. Blood pressure and heart rate (HR) were measured at 1-minute intervals throughout each phase. Pain was induced by submersing the nondominant hand in cold (2°C) water. Pain threshold, intensity, unpleasantness, and Short-Form McGill Pain Questionnaire-2 pain descriptors were rated immediately after pain testing. Mood was assessed using visual analog scales after baseline, second baseline, and pain phases. The second laboratory session was identical to the first, with the exception that a different nasal spray was administered. RESULTS: Participants reported lower pain intensity (50.57 [20.94] versus 56.73 [20.12], p = .047), pain unpleasantness (47.00 [27.24] versus 55.78 [22.46], p = .033), and Short-Form McGill Pain Questionnaire-2 pain descriptors (53.38 [31.18] versus 60.92 [31.17], p = .031) and higher pain threshold (45.70 [59.55] versus 38.35 [59.12], p = .040) after oxytocin administration relative to placebo. There was a nasal spray by phase interaction on HR (p = .006). Pain-related increase in HR was attenuated by oxytocin nasal spray. Systolic and diastolic blood pressure increased during pain testing but were unaffected by nasal spray. CONCLUSIONS: These results suggest that oxytocin can lead to decreased acute pain sensitivity.

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Crossref · 10.1097/psy.0000000000000068

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Authors
Rash, J. A., & Campbell, T. S.
Affiliations
University of Calgary (CA)
Corresponding author
Campbell, Tavis S.
Venue
Psychosomatic Medicine
Published
2014-07
Volume
76
Issue
6
Pages
422-429
ISSN
0033-3174 (ISSN-L)
OpenAlex
W2326994319
Cited by
58
References
63
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 5 · 2020: 4 · 2019: 7 · 2018: 11 · 2017: 5 · 2016: 3 · 2015: 4 · 2014: 4
FWCI
7.91
Type
journal article
Language
en
Open access
closed
Locations
  • Psychosomatic Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
Keywords
oxytocin, intranasal administration, cold pressor pain, pain threshold, pain intensity, pain unpleasantness, heart rate, blood pressure, mood, placebo effect
MeSH terms
Administration, Intranasal, Adult, Double-Blind Method, Female, Humans, Male, Oxytocin, Pain Measurement, Placebos, Treatment Outcome, Cross-Over Studies, Young Adult, Acute Pain

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