Yep definitely don't crush it, the little beads are supposed to be kept intact.

The best way that we figure out was to put the tablet (or half tab whichever you need) into the syringe & then draw the water up into it. That way all the little beads are trapped in the syringe & you know bub is getting the whole lot, otherwise it's too hard to make sure all the little beads get pulled into the syringe. It also means you can use a bit less water.