IP Library Granted Patent US 8,012,506
Granted Patent B2
US 8,012,506 · App. 11/501,649 · Granted Sep 6, 2011

Tannate compositions, methods of making and methods of use

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Quick Facts
Patent No.
US 8,012,506
App. No.
11/501,649
Granted
Sep 6, 2011
Kind
B2
Abstract

Tannate compositions containing active pharmaceutical ingredients to be used for treating nausea, vomiting, pain, convulsions, and insomnia and manufacturing processes for preparing the tannate compositions.

Claims (16)

1. A process for the conversion of at least one active pharmaceutical ingredient into a tannate salt complex for incorporation into a therapeutic liquid or semi-solid dosage form, the process comprising the steps of:

(a) dissolving the salt or free base of the active pharmaceutical ingredient in a pharmaceutically acceptable liquid in the presence of a dispersing agent and tannic acid under stirring, to form a dispersion wherein the tannic acid component is of either a natural or synthetic source;

(b) combining the tannate salt complex of the active pharmaceutical ingredient without isolation or purification with pharmaceutically acceptable excipients to generate a therapeutic dosage form.

2. The process according to claim 1 wherein the dispersing agent provided in step (a) is selected from the group consisting of natural magnesium aluminum silicate and synthetic magnesium aluminum silicate.

3. The process according to claim 2 wherein the dispersing agent is synthetic magnesium aluminum silicate.

4. The process according to claim 1 wherein step (b) includes adding a non-tannate active pharmaceutical ingredient.

5. The process of claim 1 wherein the at least one active pharmaceutical ingredient is selected from the group consisting of an antinausea agent, antiemetic, sedative, analgesic and anticonvulsive.

6. The process of claim 5 wherein the analgesic is selected from the group consisting of: codeine, diacetylmorphine, dihydrocodeine, hydrocodone, hydromorphone, meperidine, methadone, morphine, oxycodone, oxymorphone and propoxyphene.

7. A process for the conversion of at least one active pharmaceutical ingredient into a tannate salt complex for incorporation into a therapeutic solid dosage form, the process comprising mixing the salt or free base of the at least one active pharmaceutical ingredient, tannic acid, and a dispersing agent in a pharmaceutically acceptable liquid to form a tannate salt complex of the at least one pharmaceutical active ingredient for incorporating into said therapeutic solid dosage form.

8. The process of claim 7 further comprising incorporating the tannate salt complex of the at least one pharmaceutical active ingredient into said therapeutic solid dosage form.

9. The process according to claim 7 wherein the dispersing agent is selected from the group consisting of natural magnesium aluminum silicate and synthetic magnesium aluminum silicate.

10. The process according to claim 7 wherein the dispersing agent is synthetic magnesium aluminum silicate.

11. The process according to claim 7 further comprising adding a non-tannate active pharmaceutical ingredient.

12. The process according to claim 7 wherein the at least one pharmaceutical active ingredient is selected from the group consisting of an antinausea agent, antiemetic, sedative, analgesic and anticonvulsive.

13. The process according to claim 12 wherein the analgesic is selected from the group consisting of: codeine, diacetylmorphine, dihydrocodeine, hydrocodone, hydromorphone, meperidine, methadone, morphine, oxycodone, oxymorphone and propoxyphene.

14. The process according to claim 8 , wherein said therapeutic solid dosage form includes a tablet or a capsule.

Assignments (4)
SECURITY INTEREST Recorded Dec 19, 2019
From: CURRAX PHARMACEUTICALS LLC; NALPROPION PHARMACEUTICALS LLC
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 051377/0958 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2019
From: PERNIX THERAPEUTICS, LLC
To: CURRAX PHARMACEUTICALS LLC
Reel/Frame 049329/0657 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS REEL/FRAME 029567/0694 Recorded Feb 24, 2014
From: MIDCAP FUNDING IV, LLC (SUCCESSOR IN INTEREST TO MIDCAP FUNDING V, LLC)
To: PERNIX THERAPEUTICS, LLC
Reel/Frame 032330/0037 →
SECURITY AGREEMENT Recorded Jan 3, 2013
From: PERNIX THERAPEUTICS, LLC
To: MIDCAP FUNDING V, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 029567/0694 →