Rational drug use means patients receive medications appropriate to their clinical needs, in doses that meet their own individual requirements, for an adequate period, and at the lowest cost to them and their community. When medications are prescribed and administered rationally, patient outcomes improve significantly while minimizing the risk of adverse events. Nurses sit at the final safety checkpoint before a drug enters the patient's system. Understanding this concept protects patients from unnecessary pharmacological exposure and ensures healthcare resources are spent wisely. Irrational prescribing or dispensing wastes scarce resources and directly harms patients through preventable complications.
The World Health Organization outlines specific criteria to evaluate whether medicines are used properly. These foundational standards guide clinical decision-making across all healthcare tiers in Nigeria.
Polypharmacy—the simultaneous use of multiple medications by a patient—drastically increases the likelihood of irrational drug use. When patients take medications they do not need, the risks multiply rapidly.
| Consequence | Clinical Impact |
|---|---|
| Adverse Drug Reactions | Unwanted or harmful reactions from expected doses |
| Drug Interactions | Altered pharmacological response when drugs mix in the body |
| Antimicrobial Resistance | Pathogens survive exposure to drugs due to misuse or overuse |
| Increased Financial Burden | Out-of-pocket costs impoverish families and cause drug abandonment |
Antimicrobial resistance is a severe public health crisis in many Nigerian healthcare facilities, driven largely by incomplete treatment courses and overuse of broad-spectrum antibiotics.
Medication reconciliation is the formal process of creating the most accurate list possible of all medications a patient is taking. Nurses perform this task meticulously during admission, transfer, and discharge. A thorough medication assessment uncovers self-medication habits, herbal remedies, and traditional concoctions that patients often omit during doctor consultations. Many patients in Nigeria combine orthodox drugs with local herbs, risking severe herb-drug interactions. By identifying discrepancies early, nurses prevent duplicate therapy, missed baseline doses, and harmful drug combinations before clinical deterioration occurs.
Prescribing the right drug means little if the patient fails to take it correctly at home. Adherence is often poor due to complex dosing schedules, unpleasant side effects, forgetfulness, or financial constraints. Nurses bridge this gap through targeted patient education. Explaining what the drug does, how to take it, and what side effects to expect empowers patients to take charge of their health. Simple interventions like using pill organizers, setting alarm reminders, or simplifying regimens to once-daily dosing dramatically improve compliance rates.
Pharmacovigilance is the science and activities relating to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problem. Nurses play a frontline role in pharmacovigilance by observing patients for unexpected reactions after drug administration. In Nigeria, reporting adverse drug reactions to regulatory bodies like NAFDAC helps track unsafe products and prevent widespread harm. Many adverse reactions go unreported due to a lack of awareness or fear of blame. Cultivating a blameless reporting culture encourages healthcare workers to document and submit pharmacovigilance data honestly.
Improving rational drug use requires a multi-faceted approach involving institutional policies, healthcare worker training, and community sensitization. Hospitals must implement strict antibiotic stewardship programs to curb resistance. Clinical pharmacists and nurses should collaborate on ward rounds to review medication charts actively. Continuous professional education ensures clinical staff stay updated on current treatment guidelines and essential medicine lists. Empowering patients through community health outreach programs also reduces self-medication practices and promotes safe drug disposal habits.