OK I want to make sure we are on the same page ... you are waiting for pills that are a smaller dose right? (because your vet is concerned she's addisonian) I am assuming that the pills you have on hand are the higher dose right? If so I would NOT give a full dose because then you are just ASKING to go Addisonian (lower cortisol even more).

If you are giving two pills a day you could give one vs two but you cannot use a portion of a capsule.

Please confirm that I have this right because I don't want to mislead you if I am wrong. Thanks! Kim