PubMed · 10584596
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L Love, M P Couig. 1999. The MedWatch Program.. https://pubmed.ncbi.nlm.nih.gov/10584596/
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BACKGROUND: Psychotropic agents account for 23% to 51% of all inappropriate medications prescribed based on 1991 inappropriate medication criteria for nursing home residents. The criteria were revised to apply to all people older than 65 years. This study used the revised criteria in ambulatory settings to quantify potentially inappropriate prescription of psychotropic agents and identify associated characteristics. METHODS: The 1996 public use data files of the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey were analyzed for inappropriate prescription of psychotropic medications for the elderly in office-based settings and outpatient departments. Disease-independent and disease-dependent criteria were analyzed. RESULTS: Elderly patients were prescribed a psychotropic agent in 8. 7% of all visits, antidepressant and antianxiety agents being the most frequently prescribed medications. Commonly, elderly patients receiving psychotropic agents were female, white, aged between 65 and 74 years, and received health care in a metropolitan area. Potentially inappropriate psychotropic agents were prescribed in 27. 2% of all visits involving a psychotropic agent for the elderly. Disease-independent criteria (eg, antidepressant agents and long-acting benzodiazepines) accounted for most of the potentially inappropriate prescriptions. Factors positively associated with potentially inappropriate prescriptions included older age, "seen before" status, and antidepressant drug class, while enrollment in Medicaid, antipsychotic drug class, living in the Northeast region, and receiving health care in a metropolitan area were negatively associated. CONCLUSIONS: Potentially inappropriate prescription of psychotropic agents is very common for the elderly patient in the ambulatory setting. By focusing on the agents most frequently involved (eg, amitriptyline and long-acting benzodiazepines), provider characteristics (eg, location), and patient characteristics (eg, age), the greatest impact on potentially inappropriate prescribing can be achieved.
A 50-year-old man developed acute liver failure 7 months after nefazodone treatment was initiated. There was no evidence of any aetiology apart from the exposure to the antidepressant drug nefazodone, while the results of repeated histological examinations of the liver were compatible with serious progressive drug-induced hepatitis. This diagnosis was initially disregarded because in the literature no patients with nefazodone-induced hepatitis were reported. However, the drug had only recently been introduced, which meant that relatively infrequent adverse drug reactions might not have been published. Further analyses of databases of the marketing pharmaceutical industry and of the World Health Organization revealed more cases of liver toxicity ascribed to nefazodone, which showed that liver failure may indeed be associated with nefazodone use. Consequently, prescribing doctors have been warned by the pharmaceutical company about this possible adverse drug reaction.
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