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University revision · Toxicology and Pharmacology

Pharmacology of NSAIDs and Selective COX-2 Inhibitors

This essential pharmacology topic for Zambian tertiary students covers Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) and their more selective counterparts. Students will learn the central mechanism of action: inhibition of cyclooxygenase (COX) enzymes, with a detailed comparison of constitutive COX-1 and inducible COX-2 isoforms. The module covers classic NSAIDs like aspirin, ibuprofen, and diclofenac, discussing their anti-inflammatory, analgesic, and antipyretic effects alongside significant adverse effects like GI ulceration and renal impairment. It then contrasts these with the COX-2 selective inhibitors ('Coxibs' like celecoxib), explaining their improved GI safety profile but associated cardiovascular risks. For students in nursing, pharmacy, and clinical medicine programs across Zambia, this knowledge is fundamental for the safe and effective management of pain, fever, and inflammatory conditions such as arthritis, which are commonly encountered in clinical practice.

Toxicology and Pharmacology Biomedical Science(Degree)
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Questions
100
Est. time
~100 min
Views
0
Pass mark
50%

How this revision works

Outcomes

If you passWell understood! You've clearly differentiated between traditional NSAIDs and Coxibs based on COX isoform selectivity, therapeutic effects, and toxicity profiles. This rational approach to drug selection is a hallmark of skilled pharmacological practice and will serve you well in exams and clinic.
If you don't pass yetRevisit the core concept of COX-1 vs. COX-2 inhibition and how it dictates both therapeutic and adverse effects. Mapping specific side effects (e.g., GI bleed vs. thrombosis) to the inhibited enzyme will clarify this critical distinction for your pharmacology assessments.

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