Xenical is a lipase inhibitor. The drug book mentions that
the fat souble vitamins have decreased absorption with its use.

I think you would be better of with individual supplements.
The few supplements that I've seen that combined
fat soluble vitamins were always lacking something, IMO.

As you are clearly obese and the obese tend toward
diabetes and diabetics tend to have impaired conversion
of beta-carotene into vitamin A, I submit preformed
vitamin A has a place in your vitamin regimen.

Some vitamin E capsules are in water soluble
bases to improve dispersement though
I not sure how helpful that is your situation.

Best wishes on the weight loss.................
...................................William A. Noyes