Active placebo

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An active placebo is a placebo that mimics the common side effects of the drug under study.[1]

Nomenclature

According to a 1965 paper,[2] the term "fake placebo" (German: Kaschiertes Placebo) was suggested in a 1959 paper published in German.[3]

Example

Morphine and gabapentin are painkillers with the common side effects of sleepiness and dizziness. In a 2005 study assessing the effects of these painkillers on neuropathic pain, Lorazepam was chosen as an active placebo because it is not a painkiller but it does cause sleepiness and can cause dizziness.[4]

References

  1. ^ Jane Russell, quoted in about.com
  2. ^ Park LC, Covi U (April 1965). "Nonblind placebo trial: an exploration of neurotic patients' responses to placebo when its inert content is disclosed". Archives of General Psychiatry 12: 336–45. PMID 14258363. http://www.leecrandallparkmd.net/pdfs/placebo.pdf. 
  3. ^ Haas H, Fink H, Haertfelder G (1959). "[The placebo problem]" (in German). Fortschr Arzneimittclforsch 1: 279–454. PMID 13710190. 
  4. ^ Gilron I, Bailey JM, Tu D, Holden RR, Weaver DF, Houlden RL (March 31, 2005). "Morphine, gabapentin, or their combination for neuropathic pain". N Engl J Med 352 (13): 1324–34. PMID 15800228. http://content.nejm.org/cgi/content/short/352/13/1324. 

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