Crush-resistant oxycodone tablets intended for preventing accidental misuse and unlawful diversion
First Claim
Patent Images
1. Water-insoluble, matrix tablets comprising oxycodone or one of its pharmaceutically acceptable salts, capable of releasing oxycodone into the body over an extended time period and comprising oxycodone within a compression matrix, said matrix comprisinga mixture of microcrystalline cellulose and polyvinyl acetate/polyvinylpyrrolidone (80:
- 20) to the proportion of (1;
1),magnesium stearate as an anti-adherent agent,a cellulose derivative as a binder, andone or more of the following substances (a) to (f) or a mixture thereof;
(a) a substance which irritates the nasal and/or pharyngeal tracts,(b) a viscosity-increasing agent, leading to formation of a gel when the tablet is dissolved in a minimum amount of water,(c) an emetic substance,(d) an aversive coloring agent,(e) a bittering-substance,(f) an antagonist of the active ingredient (s) which may be the subject of drug abuse wherein said matrix represents 50-98% in weight of the total weight of the tablets, and wherein said matrix tablets have a cured outercoating.
1 Assignment
0 Petitions
Accused Products
Abstract
Water-insoluble matrix tablets based on oxycodone or one of its pharmaceutically acceptable salts and capable of prolonged release of oxycodone to the body, exhibiting a crush resistance of at least 4 MPa.
39 Citations
13 Claims
-
1. Water-insoluble, matrix tablets comprising oxycodone or one of its pharmaceutically acceptable salts, capable of releasing oxycodone into the body over an extended time period and comprising oxycodone within a compression matrix, said matrix comprising
a mixture of microcrystalline cellulose and polyvinyl acetate/polyvinylpyrrolidone (80: - 20) to the proportion of (1;
1),magnesium stearate as an anti-adherent agent, a cellulose derivative as a binder, and one or more of the following substances (a) to (f) or a mixture thereof; (a) a substance which irritates the nasal and/or pharyngeal tracts, (b) a viscosity-increasing agent, leading to formation of a gel when the tablet is dissolved in a minimum amount of water, (c) an emetic substance, (d) an aversive coloring agent, (e) a bittering-substance, (f) an antagonist of the active ingredient (s) which may be the subject of drug abuse wherein said matrix represents 50-98% in weight of the total weight of the tablets, and wherein said matrix tablets have a cured outercoating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- 20) to the proportion of (1;
Specification