Prescription pattern of antihypertensive drugs: An experience from a secondary care hospital in the United Arab Emirates

Objective: The aim of the study was to examine the prescription pattern of antihypertensive drugs used in a secondary care hospital in the United Arab Emirates (UAE). Methods: It was a prospective, observational study carried out in 588 adult hypertensive patients presenting to medicine outpatient and inpatient departments of Dibba Hospital, Fujairah, UAE. The study was conducted for a period of 6 months from December 2017 to May 2018. Demographic and clinical data were collected from electronic patient case records and documented. Prescriptions were studied overall for drug use details and for specific types of antihypertensive drugs. The World Health Organization Anatomical Therapeutic Chemical/Defined Daily Dose methodology was further used to calculate utilization. Statistical analysis of data was performed using Statistical Package for the Social Sciences 24.0. Findings: Of the 588 study participants, majority of the patients were on two-drug combination antihypertensive therapy (n = 210, 35.5%) followed by monotherapy (n = 188, 32.1%) and three-drug combination (n = 136, 23.1%). Calcium channel blockers were the most frequently (51%) prescribed class both in monotherapy and in combination therapy while angiotensin receptor blockers and angiotensin-converting enzyme inhibitors (55.9%) were the most preferred agents for monotherapy. Among individual antihypertensive drugs, amlodipine was prescribed the most (266 prescriptions), irrespective of monotherapy or combination therapy. Conclusion: Our study represents the current prescribing trends of antihypertensive drugs in a secondary care hospital in the UAE. The use of antihypertensive drugs largely conforms to international guidelines, but still, there is room for improvement in terms of rational drug utilization.