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Effects of Acetaminophen on Hurt Feelings

This study has been completed.
Information provided by:
University of Toronto Identifier:
First received: November 16, 2007
Last updated: June 23, 2008
Last verified: June 2008

November 16, 2007
June 23, 2008
November 2007
May 2008   (Final data collection date for primary outcome measure)
Self-reported daily hurt feelings [ Time Frame: 21 days ]
Same as current
Complete list of historical versions of study NCT00561288 on Archive Site
  • Reports of emotional states other than hurt feelings [ Time Frame: 21 days ]
  • Evaluations of self-worth [ Time Frame: 21 days ]
Same as current
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Effects of Acetaminophen on Hurt Feelings
Effects of Acetaminophen on Hurt Feelings
The purpose of the study is to investigate whether ingestion of acetaminophen reduces the experience of hurt feelings.
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Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Basic Science
Emotional Pain
  • Drug: acetaminophen
    2 x 1000 mg doses per day
  • Other: cornstarch
    2 x 1000 mg cornstarch per day
  • Experimental: 1
    2000 mg acetaminophen per day
    Intervention: Drug: acetaminophen
  • Placebo Comparator: 2
    2000 mg cornstarch per day
    Intervention: Other: cornstarch
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
May 2008
May 2008   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • University of Toronto undergraduate psychology student

Exclusion Criteria:

  • Alcohol consumption (more than 2 drinks per day)
  • Intake of enzyme-inducing drugs
  • Prolonged fasting/eating disorders/gastroenteritis
  • Intake of other over-the-counter or prescription analgesics
  • Liver Disorders
  • History of abuse treatment
Sexes Eligible for Study: All
17 Years and older   (Child, Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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University of Toronto
Not Provided
Principal Investigator: Geoff MacDonald, Ph.D. University of Toronto
Principal Investigator: Nathan DeWall, Ph.D. University of Kentucky
University of Toronto
June 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP