Controlled release formulation

Details Controlled release formulation Controlled release formulation

A - Human Necessities

61

K

167/168

A61K 9/22 (2006.01) A61K 9/20 (2006.01) A61K 9/30 (2006.01)

Patent

CA 1328218

Abstract CONTROLLED RELEASE FORMULATION A controlled release pharmaceutical formulation is provided which 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 hydrocolloid yelling agent having a viscosity of up to about 100,000 centipoises in 2% solution at 20°C, binder and excipients.

573340

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