The invention relates to a solid pharmaceutical tablet for oral delivery, the tablet comprising calcium carbonate in an amount of more than 30% by weight of the tablet and organic water-insoluble components in an amount of more than 20% by weight of the tablet, wherein the tablet is designed to be masticated into a coherent residual containing the organic water-insoluble components, and wherein the tablet is adapted to release more than 80% of the calcium carbonate within 5 minutes of mastication.
