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  • Title: Patients' representations of antidepressants: a clue to nonadherence?
    Author: Piguet V, Cedraschi C, Dumont P, Desmeules J, Allaz AF, Dayer P.
    Journal: Clin J Pain; 2007 Oct; 23(8):669-75. PubMed ID: 17885345.
    Abstract:
    OBJECTIVES: Antidepressants are prescribed frequently to chronic pain patients due to their pain relief effects. This medication raises major adherence issues. Despite the adverse effects, little is known about the factors that may jeopardize adherence in chronic pain patients. We carried out a qualitative study to investigate chronic pain patients' representations of antidepressants as compared with pain-free controls. METHODS: One hundred thirteen chronic pain patients recruited in a multidisciplinary pain clinic and 62 matched controls were questioned with standardized semistructured interviews. The interviews were submitted to content analysis. RESULTS: Ambivalence emerged as an important aspect of "patients" and controls' views about antidepressants. Antidepressants were described as potent chemicals acting in the brain, possibly causing effects on cognition, emotions, and personality, and inducing dependence and loss of control. Positive effects were mentioned, but when respondents related their own views and experiences, the statements became less favorable. Another key point was that neither the representations of the patients and nor those of the controls comprised the analgesic properties of antidepressants. DISCUSSION: Chronic pain patients' representations differed only little from those of controls. Antidepressants were not considered as addressing somatic problems. Thus, the prescription of antidepressants for chronic pain may be mistaken for a denial of the "reality" of pain. Although this study did not assess medication adherence, it is possible that patient representations have a bearing on adherence. Clinically, this suggests that these representations should be elicited and addressed, taking into account the patients' own models of pain.
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