Olmesartan medoxomil tablet and preparation method thereof

The invention relates to an olmesartan medoxomil tablet, and belongs to the technical field of pharmaceutical preparations. The olmesartan medoxomil tablet is composed of an olmesartan medoxomil plain tablet and a film coating, wherein the olmesartan medoxomil plain tablet is prepared from the following components in parts by weight: 6 to 15 parts of olmesartan medoxomil crude drug, 45 to 85 parts of filling agent, 6 to 12 parts of disintegrating agent and 0.5 to 2 parts of lubricating agent; the filling agent is a combination of mannitol, microcrystalline cellulose PH301 and microcrystalline cellulose UF-702. According to the olmesartan medoxomil tablet disclosed by the invention, the filling agent is prepared from two types of microcrystalline cellulose and mannitol in a specific proportion under the situation that no flow aid and no anti-sticking agent are added, the olmesartan medoxomil tablet is prepared by adopting a powder direct pressing method, the production period is shorter, the technology is simp