Ocular disorders in users of H2 antagonists and of omeprazole
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Pharmacoepidemiology and Drug Safety
Next article in issue: The influence of practice characteristics on the prescribing of benzodiazepines and appetite suppressant drugs View issue TOC Volume 7, Issue 4 July/August 1998 Pages 233–241 Original Report Ocular disorders in users of H2 antagonists and of omeprazole Authors Salvatore Mannino MD, MSc, Maria Grazia Troncon PhD, Mari-Ann Wallander PhD, Chiara Cattaruzzi PhD, Ferdinando Romano MD, MSc, Luisa Agostinis BSc, Paola Erika Marighi MD, Alexander Walker MD, DrPH First published: July 1998Full publication history DOI: 10.1002/(SICI)1099-1557(199807/08)7:4<233::AID-PDS336>3.0.CO;2-RView/save citation Cited by: 1 articleCitation tools Article has an altmetric score of 1 Abstract
We have conducted a cohort study of users of omeprazole and H2 antagonists in Italy to investigate whether the peroral use of these drugs may be associated with an increased incidence of ocular disorders leading to loss of vision. We have used the Sistema Informativo Sanitario Regionale (SISR database) in Friuli-Venezia-Giulia to identify all subjects who received at least one prescription for cimetidine, famotidine, niperotidine, nizatidine, omeprazole, ranitidine or roxatidine between 1 January 1991 and 31 December 1994. We have identified all hospital admissions for serious vascular or inflammatory ocular disorders following any such prescription, reviewed and validated all medical records. There were 71,108 users of any of the study drugs, contributing a total of 101,827 person years of observation. Seven cases of serious eye disorders were identified, giving an annual incidence rate of 7/100,000 persons. By comparison to non-users, the incidence rate ratio for current users of all of the study drugs together was 0, with a 95% confidence interval of 0 to 2·1. By comparison to non-users, the incidence rate ratio for past users was 0·47 (95% CI: 0·06–2·4). Our data are consistent with previous studies and add weight to the general impression of the ocular safety of these drugs.
