Yoko

What is the script, to do a action only when im poisoned ?

like..

on poisoning
cast An Nox

and what is the command to terminated a running script on the begining of other script, and in the end of that one load the another script again ?

sub AutoCure()

Waitforpoison:

Repeat
Wait(200)
Until UO.InJournal("You feel")

UO.Cast('Cure','self')
Wait(2000)

goto Waitforpoison

endsub

Something quick I just typed out. It's not perfect, you can tweak it however you want, but it's the gist of it. Play around with it and see what works.