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Canadian Consensus guidelines regarding appropriate use of nonsteroidal anti-inflammatory drugs (NSAID) were recently published. This study was done to evaluate the application of these guidelines on NSAID practice patterns in frail elderly patients referred to a specialist Geriatric Assessment Clinic. A retrospective chart review was undertaken of referrals who were currently prescribed NSAIDs. Data were captured on age, sex, weight, diagnoses, medications and dosages, indication for NSAID treatment, lying BP (as assessed in the clinic) and recent serum creatinine result. Creatinine clearance was subsequently calculated use the Cockcroft–Gault equation. Complete data were available on 107 patients (68% women, average age 80.6 years). Thirty percent were on a traditional NSAID, the remainder were on a Coxib. Concomitant aspirin was prescribed in 37%. Cytoprotection was being used in 38% and did not increase appreciably in patients with additional risk factors for GI toxicity, i.e., concomitant aspirin usage(35%), and history of GI toxicity (48%). Sixty-seven were taking anti-hypertensive medications, although more than two thirds of these patients were uncontrolled. Newly diagnosed hypertension was present in 19.6%. Calculated creatinine clearance revealed moderate to severe renal impairment in 79% of subjects, although serum creatinine was only elevated in 18%. In total, 70% of subjects were found to have relative or absolute risk factors for NSAID therapy. Given the high prevalence of potential contraindications to anti-inflammatory drug usage in this study, we advocate the dissemination and application of these guidelines in geriatric patients in an attempt to reduce potential morbidity and mortality. [ABSTRACT FROM AUTHOR]