Forum:Destruct potion

If you watched any of the animes of yugioh then if someone attacks a monster and you somehow destroy it before the attack goes through you don't get to attack again. Now I know the anime is different than a real duel but my question is lets say your opponent attacks your monster and you activate destruct potion to gain life points of the monster he was attacking. does he get to change his attack target or did you just stop that one monster from hurting you? Coltman66