Slow release drug delivery granules and process for production thereof.

摘要

Slow release drug delivery granules comprising porous granules of a calcium phosphate compound having a ratio of Ca to P of 1.3 to 1.8, a porosity of 0.1 to 70%, a specific surface area of 0.1 to 50 m<2>/g and a pore size of 1nm to 10 mu m , fired at a temperature of 200 to 1400 DEG C, and a drug component impregnated in pores of the granules, and a process for producing the same. The drug delivery granules of the present invention has a controllable and good prolonged effect of the drug release and a good imaging property to an X-ray or ultrasonic wave, and therefore can be advantageously utilized in the field of a chemotherapy.