Effects of Pharmacist Counseling with Telephone Follow-up on Adherence and Blood Pressure Level in Uncontrolled Hypertension

Abstract

This quasi-experimental study employed a one-group pretest-posttest design to examine how pharmacist counseling with telephone follow-up impacted treatment adherence and blood pressure (BP) among patients with uncontrolled hypertension. The sample comprised 30 hypertensive patients from a local Subdistrict Health Promotion Hospital (a primary care setting) whose BP levels were not adequately controlled. Data collection, conducted between December 2024 and March 2025, utilized structured forms to assess general information, illness details, knowledge, adherence to behavioral modifications, and medication compliance. Statistical analysis including Frequency, Mean, Standard Deviation, Paired t-test, Wilcoxon Signed Ranks test, and McNemar test (with a significance level of 0.05). Post-intervention, patients demonstrated significantly higher scores in knowledge and adherence to both lifestyle changes and medication regimens (p<0.05). Crucially, the mean systolic and diastolic BP levels also showed a statistically significant reduction following the intervention (p<0.05). These results strongly suggest that integrating pharmacist counseling with telephone follow-up is an effective and beneficial strategy for enhancing treatment adherence and improving blood pressure control among hypertensive patients in primary care.