EFFECTS OF A STRUCTURED MEDICATION REVIEW BY GERIATRICIAN AND CLINICAL PHARMACOLOGIST ON APPROPRIATENESS OF PHARMACOTHERAPY OF FRAIL ELDERLY INPATIENTS: Objective To study the results of a structured medication review of geriatric inpatients by both geriatrician and hospital pharmacist/clinical pharmacologist. Methods Patients who were present at the geriatric ward were eligible for a review of their medication and medical problems using a screening form. Recommendations and questions following these forms were subsequently discussed in the gerontopharmacologic meeting ('GFO') held every two weeks. Results In a 30 month-period 44 GFO's were held during which 184 patients were discussed. A total of 206 recommendations were made and 115 questions were asked. Of the recommended interventions,134 (65%) were accepted by the geriatrician. To stop a medication (64/206), to change the dosage of a medication (60/206) and to switch to another medication (44/206) were the types of interventions most accounted for. Conclusion Structured medication review led to a substantial number of medication changes in geriatric inpatients. Nearly two-thirds of the recommended interventions were accepted by the geriatricians. Seventy-two recommendations (35%) were not implemented due to logistic or patient-related reasons.