Yes, you can. The UK government isn't out to confiscate your paracetamol. They’re more worried about your suspiciously large bottle of shampoo.
But—and there’s always a but—there are rules. Mostly about how you carry it. Think of it like bringing a sandwich to the movies: allowed, but don’t be a jerk about it.
The liquid loophole (it’s annoying)
This is where people get tripped up. If your non-prescription medication is liquid, it must follow the 100ml rule. That includes cough syrup, liquid ibuprofen, or those gel-based headache sachets.
Yes, even the tiny bottle of Nurofen for your hangover. If it’s over 100ml, it’s going in the bin. Sorry. Security doesn’t care that you “swear it’s medicine.”
Pro tip: pack liquid meds in your checked luggage if you can. Or buy travel-sized bottles. Your future headache will thank you.