P&B shakes have almost a mechanical affect - they grab or push whatever is in the way - Out. Bentonite is especially good at grabbing stuff, so it's best to wait at *least* an hour after taking it before taking any supplements or other food stuffs you want to benefit from.

However, if you like herb tea for the flavor, go ahead and drink it whenever. Just remember to really increase your *water* intake when doing P&B shakes - pysllium soaks up a LOT of water and can be dehydrating.