The invention belongs to the field of medicament preparation and discloses a
fenofibrate osmotic pump type
controlled release preparation and a preparation method thereof. The preparation is formed by an
osmotic pump tablet core and a
controlled release coat coated outside the tablet core. The weight of the
osmotic pump controlled release tablet core is as follows: 250mg / tablet of
fenofibrate, 25mg to 100mg / tablet of osmotic
active matter, 200mg of 300mg / tablet of accessory which can lead the medicament in a
medicine containing layer to be easily released, 75 to 150mg / tablet of accessory which leads the medicament to be easily released in a promoting layer and proper amount of other accessories. The weight of the osmotic pump coat is as follows: 15g to 30g / 100 tablets of semi-transparent
membrane coat macromolecule material and 2 to 10g / 100 tablets of pore-
foaming agent. The invention can effectively adjust the release speed of the medicament by adjusting the tablet core and the prescription of the coat and obtain more stable and durable effective blood
medicine concentration, thereby reducing the
side effect and the taking times of the medicament, ensuring that the suction of themedicament is not affected by whether the patient eats or not and the environment in a body, and improving the compliance of a sufferer. The invention can be broadly applied to curing hyperlipemia.