Multiply this complexity by hundreds of drugs, many of which have names that sound frustratingly similar (e.g., Lisinopril vs. Losartan , or AmLODIPine vs. AminoPHYLLine ), and you have a recipe for cognitive overload.
When you recall the location of the rug, you recall the side effect. This spatial memory is much more robust than rote repetition, especially under exam stress. sketchy medical pharmacology