Exam traps: X vs Y9 min read
Mycin vs micin: one letter, two organisms
The endings mark the organism that produced the antibiotic, not how it works. Why gentamicin and erythromycin are spelled differently and share nothing else.
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Exam traps: X vs Y.
Confusable pairs split by the one property exams test. Propranolol vs atenolol, heparin vs warfarin, and more.
Exam traps: X vs Y10 min read
Bactericidal vs bacteriostatic antibiotics
A laboratory definition, not a clinical one. What the MBC/MIC ratio means, why it shifts between labs, and what trials in severe infection actually found.
Exam traps: X vs Y9 min read
Selective vs nonselective beta-blockers: what changes at the receptor
Which receptors each class blocks, why selectivity fades as the dose rises, and the asthma trap. Mechanism-first in seven minutes.
Exam traps: X vs Y9 min read
Morphine vs codeine: why CYP2D6 decides which works
Codeine is a prodrug activated by CYP2D6, morphine is not. Poor and ultra-rapid metabolisers, and the exam trap.
Exam traps: X vs Y9 min read
ACE inhibitors vs ARBs: cough, angioedema and pregnancy differences 2026
Bradykinin cough, angioedema rules and pregnancy contraindications compared. The exam-trap pair in six minutes.
Exam traps: X vs Y9 min read
Serotonin syndrome vs neuroleptic malignant syndrome: how exams split them 2026
Clonus versus lead-pipe rigidity, onset speed and causative drugs compared. The exam-trap pair.