A prospective observational study of adverse drug reactions in patients at a tertiary care teaching hospital

Mohammed Shareefuddin1, Mariya Ahmed1*, Aijaz Fathima1, Mohd Nishad1, V. Rajesh Babu1, U. Ramchander Rao2, Mohd Faqruddin1, Javed Akhtar Ansari1.

1Department of Pharmacy Practice (PharmD), MESCO College of Pharmacy, Osmania University, Hyderabad, T.S., India.
2Department of General Medicine, Osmania General Hospital, Hyderabad, T.S., India.

Volume 2017, Issue 2017, Article ID 104, Page 1-11.

Background: The aim of this study was to evaluate prevalence, causality, severity, classes of drugs involved in ADRs, organ system affected, underlying cause and management of Adverse drug reactions.
Subjects and methods: An observational prospective study was conducted over a 6 months period in Department of General Medicine using stimulated spontaneous reporting system for identifying ADRs. A questionnaire modified from previous studies and CDSCO-ADR reporting form was used as a data collection tool for this study keeping in mind.
Results: The present study was initiated in order to study prevalence, causality, severity, classes of drugs involved in ADRs, organ system affected, underlying cause and management. In this study, 181 patients were identified with ADRs. This includes (36) (19.8%) ADRs after Hospital admissions (Group-1) and 146 (80.1%), ADR causing hospital admissions (Group-2). The incidence of total ADRs was 5.6% (Group-1 (1.1%), Group-2 (4.53 %). Inter-individual variations were found to be the underlying cause for ADRs in the majority of the patients. Drug withdrawal followed by symptomatic treatment was found to be the most potent management. The occurrence of life-threatening reactions was found to be (8.9%), following three deaths due to adverse drug reactions.
Conclusions: The result showed that the ADRs in patients are a significant public health issue, impose a significant burden on patients through prolongation of hospital stay, increase in the admission rate, health care cost, morbidity, and mortality. Since there are considerable social and economic consequences of ADRs and the majority of these ADRs are predictable and often preventable, hence there is a need for greater awareness among the patients & health care professionals and also there is a need to improve the pharmacovigilance system in order to protect the Indian population from potential harm.
Keywords: Adverse Drug Reactions, Prevalence, Causality, Severity, Pharmacovigilance.