Pakistan is experiencing a rapid demographic shift. With a growing elderly population, rising rates of non-communicable diseases (NCDs) such as hypertension, type 2 diabetes, and ischaemic heart disease, and widespread self-medication practices, the issue of polypharmacy — the concurrent use of five or more medications — has emerged as a critical public health concern. It is within this context that the Doctor of Pharmacy (Pharm-D) graduate, particularly those trained through the Category-B pathway for diploma pharmacists and pharmacy technicians, occupies a uniquely powerful position in the healthcare ecosystem.
Understanding Polypharmacy: Scope and Risk
Polypharmacy is not inherently problematic. In patients with multiple chronic conditions, evidence-based regimens often require concurrent use of several medications. However, inappropriate polypharmacy — where medications are prescribed without adequate review, where drug-drug interactions are overlooked, or where doses are not adjusted for renal or hepatic function — poses serious risks including adverse drug reactions (ADRs), hospitalisation, falls, and even mortality.
A systematic review published in the British Journal of Clinical Pharmacology (Masnoon et al., 2017) found that polypharmacy affects up to 40% of older adults in hospital settings globally. In the South Asian context, factors such as fragmented healthcare delivery, absent medication reconciliation systems, and the prevalence of over-the-counter dispensing of prescription drugs exacerbate these risks significantly.
The Pharm-D Category-B Programme: Purpose and Design
The Pharm-D Category-B programme, as defined by the Pharmacy Council of Pakistan (PCP), is a postgraduate-equivalent qualification pathway designed for individuals who hold a B.Pharmacy, D.Pharmacy, or recognised diploma in pharmacy. The programme offers advanced training in pharmaceutical sciences, pharmacotherapy, pharmacovigilance, and patient counselling — enabling graduates to function as clinical pharmacists capable of supporting rational drug use.
At Health College of Nursing and Allied Health Sciences, our Category-B curriculum includes dedicated modules on:
- Clinical Pharmacokinetics: Understanding how patient-specific variables (age, renal function, body weight, genetic polymorphisms) alter drug absorption, distribution, metabolism, and excretion — and how to adjust dosing accordingly.
- Pharmacovigilance and ADR Reporting: Training students to identify, document, and report adverse drug reactions using Pakistan’s National Pharmacovigilance Centre (NPC) system, which operates under the Drug Regulatory Authority of Pakistan (DRAP).
- Medication Therapy Management (MTM): Students are taught to conduct comprehensive medication reviews, identify drug-related problems, and collaborate with physicians to optimise patient therapeutic regimens.
- Patient Education and Counselling: Effective communication strategies for improving medication adherence, particularly in low-literacy populations — a critical skill in the Pakistani context where health literacy remains a challenge.
- Antimicrobial Stewardship: Given Pakistan’s high rates of antimicrobial resistance (AMR), pharmacists trained in stewardship principles play an essential role in reducing inappropriate antibiotic use at the facility level.
The Clinical Pharmacist in the Interprofessional Team
Internationally, clinical pharmacists are embedded within ward rounds, outpatient clinics, and intensive care units as integral members of interprofessional care teams. The evidence for pharmacist-led interventions is robust: a Cochrane systematic review (Riordan et al., 2016) concluded that pharmacist-led medication reviews in older adults significantly reduced medication-related hospital admissions.
In Pakistan, this model is still emerging — but the trajectory is clear. Tertiary hospitals in Lahore, Karachi, and Islamabad are increasingly establishing clinical pharmacy departments, and the Pharmacy Council of Pakistan’s revised framework encourages Pharm-D graduates to engage in direct patient care rather than limiting their role to dispensing and compounding.
Why This Matters for Pharm-D Category-B Students
For students entering the Pharm-D Category-B programme with existing pharmacy experience, the curriculum represents an opportunity to contextualise their practical knowledge within a rigorous scientific and clinical framework. Understanding polypharmacy — its causes, consequences, and clinical management — is one of the most practical and immediately applicable competencies a Category-B graduate can acquire.
A pharmacist who can accurately identify a drug-drug interaction between warfarin and a newly prescribed antibiotic, who can counsel a hypertensive patient on the importance of adherence, or who can flag a potentially nephrotoxic combination in a patient with chronic kidney disease — that pharmacist is not merely a dispensing agent. That pharmacist is a patient safety professional.
At Health College of Nursing and Allied Health Sciences, we are committed to developing exactly that kind of pharmacy professional: one who combines scientific rigour with clinical awareness and patient-centred compassion. As Pakistan’s healthcare system matures, the clinical pharmacist will be indispensable — and we intend to train those pharmacists well.
References
Drug Regulatory Authority of Pakistan (DRAP). (2023). National Pharmacovigilance Centre. https://www.dra.gov.pk
Masnoon, N., Shakib, S., Kalisch-Ellett, L., & Caughey, G. E. (2017). What is polypharmacy? A systematic review of definitions. BMC Geriatrics, 17(1), 230.
Pharmacy Council of Pakistan. (2022). Regulations for Doctor of Pharmacy (Category-B) Programme. Islamabad: PCP.
Riordan, D. O., Walsh, K. A., Galvin, R., Sinnott, C., Kearney, P. M., & Byrne, S. (2016). The effect of pharmacist-led interventions in optimising prescribing in older adults in care homes: A systematic review. SAGE Open Medicine, 4, 1–15.