I ran out of contact lens fluid and as I was walking back to my hotel, I spotted this pharmacy was open.
I had the translator app open on my phone with “contact lens solution” translated to “solução de lentes de contato” to show to the young lady, but it turned out that wasn’t necessary. She spoke enough English (and probably much more than that), getting it from a drawer as it wasn’t on display.
At €7 for a 100 ml bottle with a new case, that’s a little expensive but when you need it, you need it. And they had it.