PMID- 11769820 OWN - NLM STAT- MEDLINE DCOM- 20020529 LR - 20181130 IS - 0269-8811 (Print) IS - 0269-8811 (Linking) VI - 15 IP - 4 DP - 2001 Dec TI - The pharmacovigilance of olanzapine: results of a post-marketing surveillance study on 8858 patients in England. PG - 265-71 AB - Olanzapine is an 'atypical' antipsychotic indicated for the treatment of schizophrenia. We analysed adverse events (AEs) reported in primary practice in England. Dispensed prescriptions issued between December 1996 and May 1998 provided exposure data. Questionnaires sent to general practitioners provided outcomes. Frequently reported AEs were: drowsiness/sedation (n = 19), extrapyramidal disorder (n = 13) and unspecified side-effects (n = 33). Events with highest incidence density in first month and reason for stopping were: drowsiness/sedation [n = 153, incidence density (ID)1 18.9], weight gain (n = 117, ID1 8.9) and malaise/lassitude (n = 65, ID1 5.2). Extrapyramidal disorders were more common in elderly population (> 70 years, ID1 3.6, risk 26.0 per 1,000 patients) compared to < 70 years (ID1 1.1, risk 8.4 per 1,000 patients). Serious suspected adverse reactions were neuroleptic malignant syndrome (n = 1) and angioneurotic ooedema (n = 2). There were eight reports of diabetes mellitus assessed as possibly due to olanzapine. Diabetes mellitus was an unlabelled AE and possible signal generated by prescription-event monitoring. FAU - Biswasl, P N AU - Biswasl PN AD - Drug Safety Research Unit, Faculty of Health and Biological Sciences, University of Southampton, UK. pipasha.biswas@dsru.org FAU - Wilton, L V AU - Wilton LV FAU - Pearcel, G L AU - Pearcel GL FAU - Freemantle, S AU - Freemantle S FAU - Shakir, S A AU - Shakir SA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Psychopharmacol JT - Journal of psychopharmacology (Oxford, England) JID - 8907828 RN - 0 (Antipsychotic Agents) RN - 12794-10-4 (Benzodiazepines) RN - 3G0285N20N (Pirenzepine) RN - N7U69T4SZR (Olanzapine) SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Antipsychotic Agents/*adverse effects/therapeutic use MH - Benzodiazepines MH - Child MH - Cohort Studies MH - England MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Olanzapine MH - Pirenzepine/*adverse effects/*analogs & derivatives/therapeutic use MH - Pregnancy MH - Product Surveillance, Postmarketing MH - Schizophrenia/drug therapy/mortality MH - Sex Factors MH - Surveys and Questionnaires EDAT- 2002/01/05 10:00 MHDA- 2002/05/30 10:01 CRDT- 2002/01/05 10:00 PHST- 2002/01/05 10:00 [pubmed] PHST- 2002/05/30 10:01 [medline] PHST- 2002/01/05 10:00 [entrez] AID - 10.1177/026988110101500405 [doi] PST - ppublish SO - J Psychopharmacol. 2001 Dec;15(4):265-71. doi: 10.1177/026988110101500405.