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Last Updated: April 19, 2024

Claims for Patent: 8,877,792

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Summary for Patent: 8,877,792

Title:	Compositions for increasing solubility of azole drug compounds that are poorly soluble in water
Abstract:	The combination of any two of a polyol, a polyol ether, and a low carbon organic alcohol provides a synergistic effect on the solubility of azole compounds, such as metronidazole, in aqueous fluid.
Inventor(s):	Yang; Meidong (Richmond, CA), Chen; Haigang (Edina, MT)
Assignee:	Dow Pharmaceutical Sciences, Inc. (Petaluma, CA)
Application Number:	13/855,034
Patent Claims:	1. A pharmaceutical composition comprising water and at least about 1.25% w/w metronidazole to about 1.5% w/w metronidazole, wherein the composition further comprises at least two of a polyol, a polyol ether, and a low carbon organic alcohol. 2. The composition of claim 1 wherein the low carbon organic alcohol is benzyl alcohol. 3. The composition of claim 2 wherein the benzyl alcohol comprises about 1% w/w of the composition. 4. The composition of claim 2 wherein the benzyl alcohol comprises about 2% w/w of the composition. 5. The composition of claim 1 wherein the polyol is propylene glycol. 6. The composition of claim 1 wherein the polyol ether is an ether of an alkylene glycol. 7. The composition of claim 6 wherein the ether of the alkylene glycol is polyethylene glycol. 8. The composition of claim 7 wherein the polyethylene glycol is polyethylene glycol 400 ("PEG 400"). 9. The composition of claim 1 wherein the water comprises about 55% or more w/w of the composition. 10. The composition of claim 1 wherein the composition comprises each of a polyol, a polyol ether, and a low carbon organic alcohol.

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