The present invention provides an orally disintegrating tablet with improved photostability of a medicament unstable to light. The orally disintegrating tablet has an inner core and an outer layer that covers the surface of the inner core, wherein the inner core contains the medicament unstable to light and the outer layer contains a light-absorbing substance such as Red No.2, Red No.3, Yellow No.4, Yellow No.5, Blue No.1, Red No.3 aluminum lake, Yellow No.4 aluminum lake, Yellow No.5 aluminum lake, Blue No.1 aluminum lake, Blue No.2 aluminum lake, red ferric oxide, yellow ferric oxide, black iron oxide, carmine, or sodium copper chlorophyllin.
