There should be the following altered states:

*Poisoned EFFECT:you lose HP each step you walk

CURE:antidote , doctor

HOW TO GET IT:if you eat food in bad conditions , or a bitten by a snake

*blind EFFECT:cant see where you are walking

CURE:time

HOW TO GET IT:long time in sand storms or magical attacks

*mute EFFECT:you cant talk , or cast magic

CURE:doctor

HOW TO GET IT:magical attacks , "quests"

*drunk EFFECT:blurred image , you walk slower , cant recover hp or mp

CURE:time , lots of coffee

HOW TO GET IT:that's obvious

*paralyzed EFFECT:you cant move

CURE:time , antidote

HOW TO GET IT:magical attacks