Patent ID: 6251355
Filing Date: 2001-06-26
Classification: A61K,C01G,C01P

Abstract:
A fine cisplatin powder consisting essentially of a fine cisplatin powder passing through a 40-mesh screen, wherein when a fine powder consisting of finely divided particles is placed on a 40-mesh screen and subjected to a screen passage test under vibration at 50 r.p.s. for 5 minutes with a vibration strength of 4.6 G, the percentage of the secondarily agglomerated particles remaining on the screen is 10% or less, and the fine powder is in a crystal form having the following characteristic peaks in an X-ray powder diffraction pattern:2.theta. Spacing (angstrom) 13.98 6.329 15.1 5.862 16.42 5.394 26.92 3.309and in the form of prismatic or plate crystals with a size of 30 .mu.m or less.