Adverse Drug Reactions: Classification and Cutaneous Mechanisms — PHAR4009

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PHAR4009 Pharmacology Honours · University of the Witwatersrand · Winter 2026

PHAR4009 Pharmacology Honours at Wits features a Q&A study tool covering adverse drug reactions, including classification systems, cutaneous mechanisms, hypersensitivity types, and organ-specific toxicities. The tool contains 18 practice questions ranging from 5-7 marks addressing clinical presentations, pathological d

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2 of 18 questions · 104 marks

Characteristics of Type A and Type B Adverse Drug Reactions6 marks
Distinguish between Type A (augmented) and Type B (bizarre) adverse drug reactions by detailing the predictability, dose dependence, and underlying mechanism or resolution of each type as outlined in the course material.
Distinguishing Phototoxicity from Photoallergy6 marks
Compare phototoxic drug reactions with photoallergic drug reactions by outlining the immunological basis, dose relationship, exposure timing, and cross-sensitivity of each reaction based on the provided material.

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