Hi Ozloz, the compound doesn't enter differently but because it is crushed down it doesn't technically need to wait the 30mins.

Basically with the beads they are coated in a substance to withstand internal acids so that the omperazole gets to where it needs to be without being eaten, with the compound it is already crushed but it is in a buffer which neutralises on the way down, so when it gets to where it needs to be it doesn't need the time to dissolve.

The reason they say 30minutes is that it takes about this long for the bead to dissolve then by the time they eat, when the acid will be high it will be ready to work!