Nanoparticulate acetaminophen formulations
First Claim
Patent Images
1. A stable nanoparticulate acetaminophen composition comprising:
- (a) particles of acetaminophen or a salt or derivative thereof having an effective average particle size of less than about 2000 nm; and
(b) at least one surface stabilizer.
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Abstract
The invention is directed to compositions comprising a nanoparticulate acetaminophen composition, or a salt or derivative thereof, having improved bioavailability. The nanoparticulate acetaminophen particles of the composition have an effective average particle size of less than about 2000 nm and are useful in the treatment of aches and pain, and in the reduction of fever and related conditions.
143 Citations
26 Claims
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1. A stable nanoparticulate acetaminophen composition comprising:
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(a) particles of acetaminophen or a salt or derivative thereof having an effective average particle size of less than about 2000 nm; and
(b) at least one surface stabilizer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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- 21. A method of preparing a composition comprising nanoparticulate acetaminophen or a salt or derivative thereof, comprising contacting particles of acetaminophen or a salt or derivative thereof with at least one surface stabilizer for a time and under conditions sufficient to provide an acetaminophen composition having an effective average particle size of less than about 2000 nm.
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24. A method for treating of aches and pain, and reducing fever or a related disease comprising administering an acetaminophen composition comprising:
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(a) particles of acetaminophen or a salt or derivative thereof having an effective average particle size of less than about 2000 nm; and
(b) at least one surface stabilizer. - View Dependent Claims (25, 26)
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Specification