one more thing
I think the best way to handle drug ads when studying: take your time. dont just click anything, even when you need 5 or 10 minutes reading through everything, do it and try to find the correct one. when you have done this with 15-20 ads, then you know what "tricks" there can be and on the real exam, you might anticipate where it is going when you otherwise would think: these are so many details and the drug ad is so lengthy!
moreover, I skipped every drug ad (even every "connected" question to just not even have to see if its a drug ad, and also those "biostats" questions that want you to really stick to the details). and then at the end, when you got a 10 min window, try to answer those 2-3 you were absolutely unsure before, and then take the drug ad.
I just felt comfortable skipping 3-5 questions each block, usually one drug ad, and at the end having enough time without always having to calculate in mind how much average time you can or should spend until to go for the next. moreover, it makes you uncomfortable when you "dont find waldo" in the drug ad but have to proceed with the next questions.
also, at the end of the block you are a little bit exhausted and you stop overthinking and in case you dont know you take the best guess and end the block because you want it to be over and to re-focus on the next.
dont forget that drug ads in general are not the enemy, they often give you 1-2 easier points, and when 2-3 questions suck, you will know you get compensated by easy ones in the next !