GASTRIC RETENTIVE EXTENDED-RELEASE DOSAGE FORMS COMPRISING COMBINATIONS OF A NON-OPIOID ANALGESIC AND AN OPIOID ANALGESIC
First Claim
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1. A method for treating pain, comprising:
- administering at least twice daily, a dosage form comprising a dose of acetaminophen and a dose of an opioid, wherein the dosage form comprises an extended release matrix that imbibes fluid after administration and swells to a size sufficient to promote gastric retention of the matrix, wherein within about 1 hour in an in vitro disintegration test the dosage form releases more than about 50% of the dose of acetaminophen, and wherein by about 6 hours in an in vitro disintegration test, the percent of opioid released from the dosage form is greater than the percent of acetaminophen released from the dosage form, and wherein the in vitro disintegration test is a USP type II apparatus at 37°
C. in 0.1 N HCl.
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Abstract
Compositions and methods for the treatment of pain in a mammal are described. More specifically, a dosage form designed for release of acetaminophen and an opioid is described, wherein the dosage form provides delivery of the drugs to the upper gastrointestinal tract (“GI”) of a mammal for an extended period of time.
23 Citations
39 Claims
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1. A method for treating pain, comprising:
administering at least twice daily, a dosage form comprising a dose of acetaminophen and a dose of an opioid, wherein the dosage form comprises an extended release matrix that imbibes fluid after administration and swells to a size sufficient to promote gastric retention of the matrix, wherein within about 1 hour in an in vitro disintegration test the dosage form releases more than about 50% of the dose of acetaminophen, and wherein by about 6 hours in an in vitro disintegration test, the percent of opioid released from the dosage form is greater than the percent of acetaminophen released from the dosage form, and wherein the in vitro disintegration test is a USP type II apparatus at 37°
C. in 0.1 N HCl.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for treating pain, comprising:
administering at least twice daily, a dosage form comprising a dose of acetaminophen and a dose of an opioid, wherein the dosage form comprises an extended release matrix that imbibes fluid after administration and swells to a size sufficient to promote gastric retention of the matrix, wherein at about 1 hour in an in vitro disintegration test the percent of acetaminophen released by the dosage form is greater than the percent of opioid released, and wherein by about 4-6 hours in an in vitro disintegration test, the dosage form releases greater than 90% of the dose of acetaminophen and the cumulative percent of opioid released is within about 10% of the cumulative percent of acetaminophen released, and wherein the in vitro disintegration test is a USP type II apparatus at 37°
C. in 0.1 N HCl.- View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for treating pain, comprising:
administering at least twice daily, a dosage form comprising a dose of acetaminophen and a dose of an opioid, wherein the dosage form comprises an extended release matrix that imbibes fluid after administration and swells to a size sufficient to promote gastric retention of the matrix, wherein in an in vitro disintegration test the percent of acetaminophen released is greater than the percent of opioid released at times of 3 hours or less, at times greater than about 6 hours, the percent of opioid released is greater than the percent of acetaminophen released, and wherein the in vitro disintegration test is a USP type II apparatus at 37°
C. in 0.1N HCl.- View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
Specification