To Assess Causality, Severity and Preventability of Adverse drug reactions of Amlodipine in the treatment of hypertension

Abstract

Background: Every drug has the potentiality to cause an adverse drug reaction (ADR). ADRs are a major problem in drug therapy. The aim of this study was to assess the incidence and causality, severity and Preventability of ADRs Amlodipine (antihypertensive agents) used for the essential hypertensive patients during the time period of April 2022 to Jun 2022. Methods: This prospective-observational study was carried out in general medicine outpatient department in 15 Patients. Results: Out of 15 patients, 10 (66.66%) patients were developed ADRs to antihypertensive drugs. 8 (85.72%) were male and 2 (14.28%) were female. Calcium channel blockers were the commonest therapeutic class of antihypertensive drugs associated with ADRS (n = 50, 64.10%). According to WHO causality assessment scale most of the ADRs of Amlodipine were "probable" 8(57.14%) followed by "possible" 2 (14.28%), certain 4 (28.57%)). According to Hartwig and Siegel scale of severity assessment, the most of the adrs were mild 10(71.42%) and moderate 4 (28.57%). According to Schumock and Thornton scale of preventability assessment all ADR are definitely preventable. Conclusions: The results of this study concluded that antihypertensive drugs able to induce the development of adverse drug reactions, which were significant cause of increase burden on health care system and decrease the quality of life, the health care professionals should take care about the rational use of antihypertensive agents. Thus, to minimize the incidence of adverse drug reaction and to increase the quality of life.