All my prescription pills for a 4-1/2 month trip fit in a single prescription bottle. I'm lucky they are that tiny. I bring photocopies of the drug store printouts. That bottle is never packed in my suitcase (which is checked on planes and out of sight on trains and buses).
I take a lot of supplements that in aggregate are bulky/heavy. They start the trip each in their own bottles (not necessarily their original bottles, sometimes with just my very amateurish labels) in my carry-on bag, but as they are used up, I consolidate them so I can discard empty bottles. On this trip I got tired of all the weight in my carry-on tote, so I put together a bottle with about 10-14 days' worth of all the supplements and moved the bulky remainder to the bottom of my wheeled suitcase, which makes the weight easier to manage.
Since 2015 I have flown into, out of or through about 12 different countries in Europe (but not Russia) and no one has ever shown the slightest interest in my pills. Which I realize doesn't mean it cannot happen. It's worth the risk to me because keeping everything in its individual container would require me to use a larger suitcase.
Although I usually take about a week's worth of extra pills, on this trip I increased it to two weeks' worth because of the possibility of getting COVID at the end of the trip and needing to reschedule my flight home. (Schengen is an entirely different issue.)
