djp
potions are rather annoying...
regardless of who is leading, once you start changing the leader, whomever's potion inventory is opened will drink the potion, whether leader or not. this is also regardless of who is actually carrying them.
this is exactly why i've answered posts concerning hotkeying other keys for potion use with the answer 'i don't know why you would'.
there is the option for designating a key (hit scroll lock) to 'change leader', but this only accomplishes who you're directly controlling and opens chests, doors, etc.
you must also define 'member 1' and 'member 2' to have control over who drinks...and then you lose even the 'follow' of the other character.
i've found no simple answer for quick-need potions like heals......