Buoyant controlled release powder formulation

Details Buoyant controlled release powder formulation Buoyant controlled release powder formulation

A - Human Necessities

61

K

A61K 47/36 (2006.01) A61K 9/00 (2006.01) A61K 9/52 (2006.01) A61K 31/275 (2006.01)

Patent

CA 2081070

A buoyant controlled release pharmaceutical powder formulation is provided which may be filled into capsules and releases a pharmaceutical of a basic character at a controlled rate regardless of the pH of the environment, which formulation includes a basic pharmaceutical, up to about 45% by weight of a pH dependent polymer which is a salt of alginic acid, such as sodium alginate, up to about 35% by weight of a pH-independent hydrocarbon gelling agent having a viscosity of up to about 100,000,centipoises in 2% solution at 20°C and excipients.

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