This invention relates to a an orally disintegrating tablet obtainable by direct compression of a dry powdered mixture, said mixture comprising up to 15% by weight of calcium silicate, at least 50% of a diluent, a disintegrant agent and an active ingredient. It also relates to a process for preparing the tablets by homogeneous blending the specific excipients in powder form and subsequent direct compression of the mixture. Said tablets disintegrate quickly in the cavity of the mouth, in particular in less than 15 seconds.
