TAMPER RESISTANT DOSAGE FORMS
2 Assignments
0 Petitions
Accused Products
Abstract
Tamper resistant controlled release formulations.
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Citations
54 Claims
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1-20. -20. (canceled)
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21. :
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
(i) crushing the dosage form using a pill crusher, a tablet mortar or two spoons, wherein the crushing is performed at least four times using the two spoons; (ii) extracting the crushed dosage form on a spoon using 2 ml boiling tap water as an extracting agent and a cigarette lighter as a heating means for a time period sufficient to boil the tap water to obtain a solution; and (iii) filtering the solution using cotton to obtain an extract, wherein said method comprises forming a controlled release dosage form comprising; (a) a therapeutic amount of the opioid agonist; (b) an opioid antagonist in at least an amount sufficient to substantially antagonize the therapeutic amount of the opioid agonist when both the opioid agonist and the opioid antagonist are administered intravenously at the same time; and (c) a hydrophobic material which comprises at least one hydrophobic polymer and at least one of a fatty alcohol or a fatty acid, and wherein an extract obtained from said controlled release dosage form by the one step extraction procedure comprises the opioid antagonist in a weight percent amount, based on total amount of opioid antagonist in the controlled release dosage form, that is more than 20%-points less than the weight percent amount of the opioid agonist present in the extract, based on total amount of opioid agonist in the controlled release dosage form. - View Dependent Claims (22, 23, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
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24. :
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
(i) crushing the dosage form using a pill crusher, a tablet mortar or two spoons, wherein the crushing is performed at least four times using the two spoons; (ii) extracting the crushed dosage form on a spoon using 2 ml boiling deionized water as an extracting agent and a cigarette lighter as a heating means for a time period sufficient to boil the tap water to obtain a solution; and (iii) filtering the solution using cotton to obtain an extract, wherein said method comprises forming a controlled release dosage form comprising; (a) a therapeutic amount of the opioid agonist; (b) an opioid antagonist in at least an amount sufficient to substantially antagonize the therapeutic amount of the opioid agonist when both the opioid agonist and the opioid antagonist are administered intravenously at the same time; and (c) a hydrophobic material which comprises at least one hydrophobic polymer and at least one of a fatty alcohol or a fatty acid, and wherein an extract obtained from said controlled release dosage form by the one step extraction procedure comprises the opioid antagonist in a weight percent amount, based on total amount of opioid antagonist in the controlled release dosage form, that is more than 15%-points less than the weight percent amount of the opioid agonist present in the extract, based on total amount of opioid agonist in the controlled release dosage form. - View Dependent Claims (25, 26)
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
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27. :
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
(i) crushing 10 of the dosage forms using a pill crusher; and (ii) extracting the crushed dosage forms in a glass vial using 100 ml of an extraction solvent and shaking for at least 15 minutes at a temperature that is at least room temperature to obtain an extract, the extraction solvent being selected from the group consisting of deionized water, 2N hydrochloric acid, 2N acetic acid, 0.1 N sodium hydroxide solution, 0.5N sodium hydroxide solution, 1N sodium hydroxide solution, 2N sodium hydroxide solution at 40% ethanol wherein said method comprises forming a controlled release dosage form comprising; (a) a therapeutic amount of the opioid agonist; (b) an opioid antagonist in at least an amount sufficient to substantially antagonize the therapeutic amount of the opioid agonist when both the opioid agonist and the opioid antagonist are administered intravenously at the same time; and (c) a hydrophobic material which comprises at least one hydrophobic polymer and at least one of a fatty alcohol or a fatty acid, and wherein an extract obtained from said controlled release dosage form by the one step extraction procedure comprises the opioid antagonist in a weight percent amount, based on total amount of opioid antagonist in the controlled release dosage form, that is more than 10%-points less than the weight percent amount of the opioid agonist present in the extract, based on total amount of opioid agonist in the controlled release dosage form. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
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35. :
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
(i) heating deionized water to 70°
C.;(ii) adding the dosage form to the deionized water to form a mixture; (iii) stirring the mixture for at least 15 minutes to obtain an extract; and (iv) separating the extract from the mixture, wherein said method comprises forming a controlled release dosage form comprising; (a) a therapeutic amount of the opioid agonist; (b) an opioid antagonist in at least an amount sufficient to substantially antagonize the therapeutic amount of the opioid agonist when both the opioid agonist and the opioid antagonist are administered intravenously at the same time; and (c) a hydrophobic material which comprises at least one hydrophobic polymer and at least one of a fatty alcohol or a fatty acid, and wherein an extract obtained from said controlled release dosage form by the one step extraction procedure comprises the opioid antagonist in a weight percent amount, based on total amount of opioid antagonist in the controlled release dosage form, that is more than 15%-points less than the weight percent amount of the opioid agonist present in the extract, based on total amount of opioid agonist in the controlled release dosage form. - View Dependent Claims (36)
- A method to prevent extraction of an opioid agonist from a dosage form by a one step extraction procedure comprising steps of;
Specification