What to put in a carry on bag?

I don't see any reason not to keep them in your carry-on or purse. I suppose if you're worried about overzealous security screening it would be best to have them in the original containers, but I've brought pills of various types in my own (non-original) containers and it's never been a problem.

How bad would it be for you if you didn't have them for a few days? Checked luggage can get delayed, so anything you need daily should be in your carry on. If you take the tylenol regularly or have a condition making the vitamins very important, then they need to be in the carry on.

In my carry-on bag, I put only the prescribed meds, which I cannot do without. Vitamins go into the checked-in luggage.

I have a travel pill organizer that measures about 3" x 4" and is slim so it tucks easily in my carry-on bag--vitamins, prescription meds and Tylenol all fit in there, no point in separating.

I agree with Fred on this. OTC meds and vitamins are replaceable and ubiquitous in Europe. Put a couple days' worth of them in the personal item (purse or small backpack) with the rest in your checked or carryon bag.

Always remember that Britain and Germany are first world nations. They have everything you could want to purchase.

Yes, my only concern is if I put vitamins and tylenol in my carry on that security will make me discard them or not let me through security with them?

OTC's should be put in your carry on/purse. If you take a liquid OTC (up to 3.4 oz), it needs to go in your 3-1-1. I've flown through Heathrow a number of times; have not been questioned about OTC's/vitamins. I can't give an answer about Germany.

I put everything in a carry on bag--a ultra light 21 inch rolling bag and an oversize purse or in my case small day backpack. I check nothing.
My wife and I can each travel indefinitely with such a bag with careful planning. See Rick Steves' packing list.

I carry lots of drugs with me every trip to Europe. Lots of different drugs for my personal use I mean. They are all prescription drugs except for a couple vitamin type things. I keep all in their original packaging. They all go in my carryon. In the past 15 years, I have never had anyone even look at them much less ask about them or tell me I need to trash them. I would be more worried about the pills disappearing from my checked bag somewhere along the way because an inspector thought they might be something else beside what they are.

As long as the Tylenol is not the kind mixed with narcotics, there is nothing to worry about.

Thank You all for helping me know what to do! Looks like I don't have to worry about my vitamins and tylenol is just plain tylenol.
I gather that it is only liquids that should be put in a checked bag?
I like the way Rick S. packs but I am not there yet...I need one bigger bag plus my carry on bag!

DO NOT put any meds in your checked bag! If the bag doesn't make it on time or is totally lost you might have a problem. TSA does not worry about pills. Liquid meds (you can take more than the 3 oz. of theses) should be in original bottles and in their own ziptop baggie. Simply tell the TSA you have them. They may direct you to put that baggie in it's own 'tray' and they may do a special screening- those are getting fewer though, it seems. Put meds you need the day of flight and maybe the next in your purse, the rest in your carry-on. Other than liquids, meds can be organized however you wish- pill organizer, baggies, etc. DO have the info about any prescription drugs- not for TSA or customs overseas, but in case of an emergency.

TSA will do no such thing, ie discarding vitamins.

Two pieces of "carry-on" go on to be scanned, my shoulder sack in which I have vitamin containers plus prescribed meds. and my fanny/waist belt where I carry some of the prescribed meds. The TSA sees all that on the screen. The result is they have never asked about them, ie I have never had to throw away anything in that regard. What liquids do I check in in the spinner? Mouthwash and shampoo.

When I am all done with security, putting my shoes back on, etc, those meds are on my person, checking everything before walking away and going towards the departure gate or an eatery.

In your carry-on, at minimum you should have the medications you might need for the flight and for the first day if your luggage is lost. It is not just Tylenol that you should consider carrying. I also have decongestion (helps ear pain if I have a slight cold), antacids, and an anti-diarrhea medication. I have been on flights when I have needed them and was glad that I had them with me.

I always put any OTC med in my carry on bag. If I have a headache, I don't want to pay airport prices for a couple of tablets. I also like the convenience.

When returning from London Heathrow in 2017, I had to scramble because LHR does not allow liquid medications outside the 3-1-1 bag. Security wasn't busy at the time, and the checker helped me get things together so they just about passed muster. So what works when traveling out of the US may not work when traveling out of every European airport. (I only know about Heathrow.)

Yes, my only concern is if I put vitamins and tylenol in my carry on
that security will make me discard them or not let me through security
with them?

At which airport did that happen to you that you are concerned about this happening again?