Effects of Acetaminophen on Hurt Feelings

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00561288
Recruitment Status : Completed
First Posted : November 20, 2007
Last Update Posted : June 25, 2008
Information provided by:
University of Toronto

November 16, 2007
November 20, 2007
June 25, 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.
Not Provided
Not Applicable
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, 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
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
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
Not Provided
Not Provided
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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