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Direct-to-consumer prescription drug advertising and the public

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Abstract

OBJECTIVE: Drug manufacturers are intensely promoting their products directly to consumers, but the impact has not been widely studied. Consumers’ awareness and understanding of, attitudes toward, and susceptibility to direct-to-consumer (DTC) drug advertising were examined.

DESIGN: Random-digit dialing telephone survey with a random household member selection procedure (completion and response rates, 58% and 69%, respectively).

SETTING: Respondents were interviewed while they were at their residences.

PARTICIPANTS: Complete data were obtained from 329 adults in Sacramento County, California.

MEASUREMENTS AND MAIN RESULTS: Outcome measures included awareness of advertisements for 10 selected drugs, misconceptions about DTC advertising, attitudes toward DTC ads, and behavioral responses to such promotions. The influence of demographic characteristics, health status, attitudes, beliefs, and media exposure on awareness and behaviors was examined. On average, respondents were aware of advertisements for 3.7 of the 10 drugs; awareness varied from 8% for Buspar (buspirone) to 72% for Claritin (loratadine). Awareness was associated with prescription drug use, media exposure, positive attitudes toward DTC advertising, poorer health, and insurance status. Substantial misconceptions were revealed; e.g., 43% thought that only “completely safe” drugs could be advertised. Direct-to-consumer advertisements had led one third of respondents to ask their physicians for drug information and one fifth to request a prescription.

CONCLUSIONS: Direct-to-consumer advertisements are reaching the public, but selectively so, and affecting their behaviors. Implications for public policy are examined.

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References

  1. Mueller C, Schur C, O’Connell J. Prescription drug spending: the impact of age and chronic disease status. Am J Public Health. 1997;87:1626–9.

    PubMed  CAS  Google Scholar 

  2. Giaquinta D. Drug formularies—good or evil? A view from a managed care provider. Cardiology. 1994;85(suppl 1):30–5.

    PubMed  Google Scholar 

  3. Jaklevic MC. Prescribed cutback: HMOs shift risk to doc groups to curb drug utilization. Mod Healthcare. 1997;27(29):34.

    Google Scholar 

  4. Growth seen in ads for direct-to-consumer drugs. Am Med News. April 27, 1998:16.

  5. ’t Hoen E. Direct-to-consumer advertising: for better profits or for better health? Am J Health-System Pharmacy. 1998;55:594–7.

    Google Scholar 

  6. Alperstein NM, Peyrot M. Consumer awareness of prescription drug advertising. J Advertising Res. 1993;33(4):50–6.

    Google Scholar 

  7. Rogers EM. Diffusion of Innovations. 3rd ed. New York, NY: The Free Press; 1983:241–70.

    Google Scholar 

  8. Bradley L, Zito JM. Direct-to-consumer prescription drug advertising. Med Care. 1997;35:86–92.

    Article  PubMed  CAS  Google Scholar 

  9. Waksberg J. Sampling methods for random digit dialing. J Am Stat Assoc. 1978;73:40–6.

    Article  Google Scholar 

  10. Hagen DE, Collier CM. Must respondent selection procedures for telephone surveys be invasive? Public Opin Q. 1983;47:547–56.

    Article  Google Scholar 

  11. Cronbach LJ. Coefficient alpha and the internal structure of tests. Psychometrika. 1951;16:297–334.

    Article  Google Scholar 

  12. Carmines EG, Zeller RA. Reliability and Validity Assessment. Newbury Park, Calif: Sage; 1979.

    Google Scholar 

  13. Ware JE Jr. SF-36 Health Survey: Manual And Interpretation. Boston, Mass: The Health Institute, New England Medical Center; 1993.

    Google Scholar 

  14. Bentler PM, Wu EJC. EQS for Windows Users Guide. Encino, Calif: Multivariate Software, Inc.; 1995.

    Google Scholar 

  15. Hosmer DW, Lemeshow S. Applied Logistic Regression. New York, NY: John Wiley; 1989.

    Google Scholar 

  16. Everett SE. Lay audience response to prescription drug advertising. J Advertising Res. 1991;31(2):43–9.

    Google Scholar 

  17. Nordenberg T. Direct to you: TV drug ads that make sense. FDA Consumer. 1998;32:7.

    PubMed  CAS  Google Scholar 

  18. O’Keefe DJ. Persuasion: Theory and Research. Newbury Park, Calif: Sage; 1990.

    Google Scholar 

  19. Morris LA, Brinberg D, Klimberg R, Rivera C, Millstein LG. Miscomprehension rates for prescription drug advertisements. Curr Issues Res Advertising. 1986;9(1,2):93–117.

    Google Scholar 

  20. Morris LA, Brinberg D, Klimberg R, Millstein L, Rivera C. Consumer attitudes about advertisements for medicinal drugs. Soc Sci Med. 1986;22:629–38.

    Article  PubMed  CAS  Google Scholar 

  21. Percy L, Rossiter JR. A model of brand awareness and brand attitude advertising strategies. Psychol Marketing. 1992;9:263–74.

    Article  Google Scholar 

  22. Sitthi-Amorn C, Ngamvithayapongse J. The role of media and communication in improving the use of drugs and other technologies. Int J Technol Assess Health Care. 1998;14:71–80.

    Article  PubMed  CAS  Google Scholar 

  23. Wilkes MS, Doblin BH, Shapiro MF. Pharmaceutical advertisements in leading medical journals: Experts’ assessments. Ann Intern Med. 1992;116:912–9.

    PubMed  CAS  Google Scholar 

  24. Lexchin J. What information do physicians receive from pharmaceutical representatives? Can Fam Physician. 1997;43:941–5.

    PubMed  CAS  Google Scholar 

  25. Vener AM, Krupka LR. Over-the-counter drug advertising in gender oriented popular magazines. J Drug Educ. 1986;16:367–81.

    PubMed  CAS  Google Scholar 

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This project was reviewed and approved by the University of California, Davis, Human Subjects Review Committee. Informed consent was obtained from all subjects.

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Bell, R.A., Kravitz, R.L. & Wilkes, M.S. Direct-to-consumer prescription drug advertising and the public. J GEN INTERN MED 14, 651–657 (1999). https://doi.org/10.1046/j.1525-1497.1999.01049.x

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  • DOI: https://doi.org/10.1046/j.1525-1497.1999.01049.x

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