Evidence-Based Pharmacist Care (Clinical, Economic, and Humanistic Impact): Gastrointestinal Infections

Evidence-based pharmacist care optimizes the management of gastrointestinal (GI) infections across clinical, economic, and humanistic domains. Clinically, pharmacists ensure appropriate antimicrobial selection and dosing, monitor for drug–drug interactions and adverse effects, and provide timely referrals, reducing symptom severity and complication rates. Economically, interventions such as generic substitution, dose optimization, and medication-use evaluations shorten hospital stays, prevent readmissions, and lower overall treatment costs. Humanistically, tailored patient education on hydration, diet, hygiene, and medication adherence fosters self-efficacy, diminishes anxiety, and improves quality of life. Current evidence from randomized trials, cohort studies, and costeffectiveness analyses demonstrates that pharmacist-led antimicrobial stewardship and counseling programs decrease healthcare utilization and significantly boost patient satisfaction scores. Facilitators include interdisciplinary collaboration, digital health tools, and continuous professional development, while barriers encompass regulatory limits, time constraints, and reimbursement challenges. Standardized metrics and implementation frameworks are proposed to guide sustainable integration of evidencebased pharmacist interventions in GI infection care.