Aspirin against ibuprofen is the pairing that organizes this: irreversible against reversible at cyclooxygenase, which is why one disables a platelet for its lifetime and the other wears off. Aspirin then stacks three different jobs by exposure, with tinnitus as the audible marker of the top of that ladder. Reye’s syndrome gets its own run of questions — the preceding viral illness, the five stages and the mortality — because it is the reason a cheap and useful drug is kept away from children. What these do and do not ask. Indications and adverse effects are in — each agent is asked for what it is used for and what it does to the patient. Dosing and formulations are out, so nothing here turns on a milligram or a strength, which is why the sets are 17 to 19 rather than the usual 30. Every option carries its own reason, correct and incorrect alike.
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