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Claims for Patent: 7,687,466

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Claims for Patent: 7,687,466

Title:Abuse-resistant amphetamine prodrugs
Abstract:The invention describes compounds, compositions, and methods of using the same comprising a chemical moiety covalently attached to amphetamine. These compounds and compositions are useful for reducing or preventing abuse and overdose of amphetamine. These compounds and compositions find particular use in providing an abuse-resistant alternative treatment for certain disorders, such as attention deficit hyperactivity disorder (ADHD), ADD, narcolepsy, and obesity. Oral bioavailability of amphetamine is maintained at therapeutically useful doses. At higher doses bioavailability is substantially reduced, thereby providing a method of reducing oral abuse liability. Further, compounds and compositions of the invention decrease the bioavailability of amphetamine by parenteral routes, such as intravenous or intranasal administration, further limiting their abuse liability.
Inventor(s): Mickle; Travis (Coralville, IA), Krishnan; Suma (Belvedere, CA), Bishop; Barney (Annandale, VA), Lauderback; Christopher (Blacksburg, VA), Moncrief; James Scott (Christiansburg, VA), Oberlender; Robert (Blacksburg, VA), Piccariello; Thomas (Blacksburg, VA), Paul; Bernhard J. (Lexington, MA), Verbicky; Christopher A. (Broadalbin, NY)
Assignee: Shire LLC (Florence, KY)
Application Number:12/201,794
Patent Claims: 1. A pharmaceutical composition comprising (a) L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof and (b) a pharmaceutically acceptable additive.

2. A pharmaceutical composition as defined in claim 1, wherein said pharmaceutical composition is suitable for oral dosing.

3. A pharmaceutical composition as defined in claim 2, comprising from 2.5 mg to 500 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

4. A pharmaceutical composition as defined in claim 3, comprising from 10 mg to 250 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

5. A pharmaceutical composition as defined in claim 4, comprising from 25 mg to 75 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

6. A pharmaceutical composition as defined in claim 5, comprising 30 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

7. A pharmaceutical composition as defined in claim 5, comprising 50 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

8. A pharmaceutical composition as defined in claim 5, comprising 70 mg of L-lysine-d-amphetamine or a pharmaceutically acceptable salt thereof.

9. A pharmaceutical composition as defined in claim 2, comprising a salt of L-lysine-d-amphetamine.

10. A pharmaceutical composition as defined in claim 9, wherein said salt is a mesylate salt.

11. A pharmaceutical composition as defined in claim 10, wherein said salt is a dimesylate salt.

12. A pharmaceutical composition comprising L-lysine-d-amphetamine dimesylate and a pharmaceutically acceptable additive, wherein said pharmaceutical composition has a water content of about 1% to about 10% by Karl Fischer analysis.

13. A pharmaceutical composition as defined in claim 12, wherein said pharmaceutical composition has a water content of about 1% to about 8% by Karl Fischer analysis.

14. A pharmaceutical composition as defined in claim 13, wherein said water content is about 2% to about 7% by Karl Fischer analysis.
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