[Pgmills]

I have two expat friends with UC here and they get treated perfectly by the local Heath system.

 

[Pgmills]

What I can tell you categorically is that my two British friends get all their medicines on prescription. As with all drugs here, there is a cost but the chronic cases ( like UC) are extremely heavily discounted.
A post under a topic of say 'health care for American expats' may get you some advice on how to register at a Health centre as a third country person rather than an EU citizen.