Personally I would spend 2-4 hours making note cards for our upcoming exam as I found that note cards helped me recall information especially for brute force memorization facts like pharmacology and biochemistry.
Below are other students from the "Student Doctor Forum"
"I spend the first half of my day making new cards and looking at new material for that day, and I spend the second half of my day doing old cards that I've already made. I review ~200-300 old cards a day, give or take, over the course of maybe 3-4 hours
"Basically all my study time year 1-2 was flash cards and I would dedicate 2-3 hours a day to making and learning my cards"
For reference, during our foundational courses (anatomy, biochem, genetics, etc.) I was making 50-100 of my notes sheets every month, and if I'm remembering correctly I had like 12,000 flashcards total by the end of either first year or first semester.