Pharmaceutical compositions for treating or preventing pain
First Claim
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1. A pharmaceutical composition in the form of a bi-layer tablet comprising:
- (1) an immediate release layer comprising;
(a) about 5 mgs to about 20 mgs of promethazine or a pharmaceutically acceptable salt thereof,(b) about 75 mgs to about 150 mgs of silicified microcrystalline cellulose,(c) about 5 mgs to about 20 mgs of croscarmellose sodium, and(d) about 0.2 mgs to about 5 mgs of magnesium stearate; and
(2) a controlled release layer comprising;
(a) about 250 mgs to about 400 mgs of acetaminophen, or a pharmaceutically acceptable salt thereof,(b) about 2 mgs to about 15 mgs of hydrocodone, or a pharmaceutically acceptable salt thereof,(c) about 100 mgs to about 250 mgs of silicified microcrystalline cellulose,(d) about 5 mgs to about 30 mgs of hydroxypropyl methylcellulose,(e) about 0.5 mgs to about 5 mgs of magnesium stearate, and(f) about 0.5 mgs to about 10 mgs of stearic acid,wherein the bi-layer tablet provides an effective amount of the hydrocodone and the acetaminophen, or pharmaceutically acceptable salts thereof, for about 4 to about 6 hours following administration, and provides an effective amount of the promethazine or pharmaceutically acceptable salt thereof to reduce or eliminate an adverse effect associated with administration of the hydrocodone or pharmaceutically acceptable salt thereof, andwherein at least about 90% of the promethazine or pharmaceutically acceptable salt thereof is released within the first 10 minutes following administration, and 25% to 60% of the hydrocodone or pharmaceutically acceptable salt thereof is released within the first 5 minutes following administration.
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Accused Products
Abstract
Methods and compositions are provided which comprise effective amounts of one or more analgesics, such as hydrocodone or acetaminophen, and an antiemetic, such as promethazine, to treat a subject, including reducing or eliminating an adverse effect associated with the analgesics.
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Citations
28 Claims
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1. A pharmaceutical composition in the form of a bi-layer tablet comprising:
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(1) an immediate release layer comprising; (a) about 5 mgs to about 20 mgs of promethazine or a pharmaceutically acceptable salt thereof, (b) about 75 mgs to about 150 mgs of silicified microcrystalline cellulose, (c) about 5 mgs to about 20 mgs of croscarmellose sodium, and (d) about 0.2 mgs to about 5 mgs of magnesium stearate; and (2) a controlled release layer comprising; (a) about 250 mgs to about 400 mgs of acetaminophen, or a pharmaceutically acceptable salt thereof, (b) about 2 mgs to about 15 mgs of hydrocodone, or a pharmaceutically acceptable salt thereof, (c) about 100 mgs to about 250 mgs of silicified microcrystalline cellulose, (d) about 5 mgs to about 30 mgs of hydroxypropyl methylcellulose, (e) about 0.5 mgs to about 5 mgs of magnesium stearate, and (f) about 0.5 mgs to about 10 mgs of stearic acid, wherein the bi-layer tablet provides an effective amount of the hydrocodone and the acetaminophen, or pharmaceutically acceptable salts thereof, for about 4 to about 6 hours following administration, and provides an effective amount of the promethazine or pharmaceutically acceptable salt thereof to reduce or eliminate an adverse effect associated with administration of the hydrocodone or pharmaceutically acceptable salt thereof, and wherein at least about 90% of the promethazine or pharmaceutically acceptable salt thereof is released within the first 10 minutes following administration, and 25% to 60% of the hydrocodone or pharmaceutically acceptable salt thereof is released within the first 5 minutes following administration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 27, 28)
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18. A method of treating or preventing pain or discomfort in a subject in need thereof, comprising administering to the subject a pharmaceutical composition in the form of a bi-layer tablet which comprises:
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(1) an immediate release layer comprising; (a) about 5 mgs to about 20 mgs of promethazine or a pharmaceutically acceptable salt thereof, (b) about 75 mgs to about 150 mgs of silicified microcrystalline cellulose, (c) about 5 mgs to about 20 mgs of croscarmellose sodium, and (d) about 0.2 mgs to about 5 mgs of magnesium stearate; and (2) a controlled release layer comprising; (a) about 250 mgs to about 400 mgs of acetaminophen, or a pharmaceutically acceptable salt thereof, (b) about 2 mgs to about 15 mgs of hydrocodone, or a pharmaceutically acceptable salt thereof, (c) about 100 mgs to about 250 mgs of silicified microcrystalline cellulose, (d) about 5 mgs to about 30 mgs of hydroxypropyl methylcellulose, (e) about 0.5 mgs to about 5 mgs of magnesium stearate, and (f) about 0.5 mgs to about 10 mgs of stearic acid, wherein the bi-layer tablet provides an effective amount of the hydrocodone and the acetaminophen, or pharmaceutically acceptable salts thereof, for about 4 to about 6 hours following administration, and provides an effective amount of the promethazine or pharmaceutically acceptable salt thereof to reduce or eliminate an adverse effect associated with administration of the hydrocodone or pharmaceutically acceptable salt thereof, and wherein at least about 90% of the promethazine or pharmaceutically acceptable salt thereof is released within the first 10 minutes following administration, and 25% to 60% of the hydrocodone or pharmaceutically acceptable salt thereof is released within the first 5 minutes following administration. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification