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Claims for Patent: 8,481,598

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Claims for Patent: 8,481,598

Title:Stable dosage forms of levomilnacipran
Abstract: The present invention relates to stable dosage forms of levomilnacipran and pharmaceutically acceptable salts thereof. Processes for the preparation of these dosage forms and methods of using these dosage forms are also described.
Inventor(s): Surana; Rahul (Commack, NY), Divi; Murali (Ronkonkoma, NY), Chhettry; Anil (Holtsville, NY)
Assignee:
Application Number:13/006,993
Patent Claims: 1. A method for treating major depressive disorder in a patient in need thereof, comprising administering to the patient about 120 mg/day of levomilnacipran or a pharmaceutically acceptable salt thereof in one or more sustained release oral dosage forms, wherein the administering step provides a therapeutic blood plasma level of levomilnacipran or pharmaceutically acceptable salt thereof over approximately a twenty-four hour period to treat major depressive disorder in the patient, and wherein the administering step provides an average maximum plasma concentration (C.sub.max) between about 50 ng/mL and about 350 ng/mL of levomilnacipran or pharmaceutically acceptable salt thereof, an AUC.sub.0-.infin. between about 1000 nghr/mL and about 9000 nghr/mL and a T.sub.max of at least 3 hours to the patient.

2. The method of claim 1, wherein the administering step comprises administering levomilnacipran hydrochloride.

3. The method of claim 1, wherein the administering step provides a mean T.sub.max between about 4 hours and about 10 hours to the patient.

4. The method of claim 1, wherein the administering step provides a mean T.sub.max of at least 3 hours and a mean AUC.sub.0-.infin. between about 5000 nghr/mL and about 9000 nghr/mL to the patient.

5. The method of claim 1, wherein the administering step provides a mean T.sub.max of at least 3 hours and a mean AUG.sub.0-.infin. within ten percent of 5000 nghr/mL to the patient.

6. The method of claim 1, wherein the administering step provides a mean T.sub.max of at least 3 hours and a mean AUG.sub.0-.infin. within twenty percent of 5000 nghr/mL to the patient.

7. The method of claim 1, wherein the administering step further comprises administering within the sustained-release oral dosage forms between about 0.001% and about 0.5% by weight of (1S,5R) 1-phenyl-3-azabicyclo[3-1-0]hexane-2-one relative to the amount of levomilnacipran or salt thereof.

8. The method of claim 1, wherein the administering step further comprises administering within the sustained-release oral dosage forms between about 0.001% and about 0.2% by weight of (1S,5R) 1-phenyl-3-azabicyclo[3-1-0]hexane-2-one relative to the amount of levomilnacipran or salt thereof.
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