Method for delivering an active ingredient by controlled...

Details Method for delivering an active ingredient by controlled... Method for delivering an active ingredient by controlled...

A - Human Necessities

61

K

167/166, 167/4.4

A61K 9/16 (2006.01)

Patent

CA 1283355

METHOD FOR DELIVERING AN ACTIVE INGREDIENT BY CONTROLLED TIME RELEASE UTILIZING A NOVEL DELIVERY VEHICLE WHICH CAN BE PREPARED BY A PROCESS UTILIZING THE ACTIVE INGREDIENT AS A POROGEN ABSTRACT OF THE INVENTION Delivery vehicles comprised of a polymeric bead having a network of pores with an active ingredient held within the network are provided for use in a method to provide controlled release of the active ingredient. The network of pores is substantially non-collapsible upon removal of the active ingredient and the delivery vehicles are polymerized by a process in which the active ingredient also comprises the porogen during formation of the network of pores.

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