Controlled release device for an active substance

Details Controlled release device for an active substance Controlled release device for an active substance

A - Human Necessities

61

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128/104

A61K 9/22 (2006.01) A61J 3/10 (2006.01) A61K 9/00 (2006.01) A61K 9/20 (2006.01) A61M 31/00 (2006.01) B30B 11/00 (2006.01) B30B 11/04 (2006.01)

Patent

CA 1310242

PATENT DPC 7075 CONTROLLED RELEASE DEVICE FOR AN ACTIVE SUBSTANCE Abstract A device for the controlled release of a substance having useful activity into a fluid medium as a substantially constant rate, said substance contained in a shape which is substantially that of a truncated cone by means of an impermeable wall or coating on the base and side (but not the top) of said truncated cone. Apparatus useful in manufacture when said device is a tablet for administration to a mammal.

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