Details for Patent: 7,261,889

Title:	Local anesthetic methods and kits
Abstract:	Methods of reversing local anesthesia are disclosed. The methods comprise administering a local anesthetic and alpha adrenergic receptor agonist to induce local anesthesia followed by reversing anesthesia with a low dose of an alpha adrenergic receptor antagonist. Also disclosed are kits comprising a local anesthetic, an alpha adrenergic receptor agonist and a low dose of an alpha adrenergic receptor antagonist.
Inventor(s):	Weber; Eckard (San Diego, CA), Katz; Howard I. (La Jolla, CA)
Assignee:	Novalar Pharmaceuticals, Inc. (San Diego, CA)
Filing Date:	Mar 17, 2005
Application Number:	11/081,640
Claims:	1. A kit comprising a carrier having in close confinement therein two or more containers, wherein a first container contains an anesthetic agent and optionally an alpha adrenergic receptor agonist and a second container contains a unit dose of a composition, said unit dose comprising between about 0.0018 mg and about 0.45 mg phentolamine mesylate or a molar equivalent of another alpha adrenergic receptor antagonist. 2. The kit of claim 1, wherein said another alpha adrenergic receptor antagonist is selected from the group consisting of phentolamine, phentolamine hydrochloride, tolazoline, yohimbine, rauwolscine, doxazosine, labetalol, prazosine, tetrazosine and trimazosine. 3. The kit of claim 1, wherein said anesthetic agent is selected from the group consisting of lidocaine, polocaine, etidocaine, lignocaine, xylocaine, novocaine, carbocaine, procaine, prilocaine, bupivacaine, cinchocaine, and mepivacaine. 4. The kit of claim 1, wherein said alpha adrenergic receptor agonist is selected from the group consisting of levonordefrin, epinephrine and norepinephrine. 5. The kit of claim 1, wherein said second container has a volume of between 1.6 mL and 1.8 mL. 6. The kit of claim 1, wherein said second container is a CARPULE. 7. The kit of claim 1, wherein said second container fits into a standard dental local anesthetic syringe. 8. The kit of claim 1, wherein said anesthetic agent and said alpha adrenergic receptor agonist are in said first container. 9. The kit of claim 8, wherein said anesthetic agent and said alpha adrenergic agonist are in separate containers. 10. The kit of claim 1, wherein said unit dose comprises between about 0.09 mg and about 0.45 mg phentolamine mesylate or a molar equivalent of another alpha adrenergic receptor antagonist. 11. A kit comprising a carrier having in close confinement therein two or more containers, wherein a first container contains an anesthetic agent and optionally an alpha adrenergic receptor agonist and a second container contains a solution comprising an alpha adrenergic receptor antagonist at a concentration of from about 0.001 mg/mL to about 0.25 mg/mL. 12. The kit of claim 11, wherein said alpha adrenergic receptor antagonist is selected from the group consisting of phentolamine mesylate, phentolamine, phentolamine hydrochloride, tolazoline, yohimbine, rauwolscine, doxazosine, labetalol, prazosine, tetrazosine and trimazosine. 13. The kit of claim 11, wherein said anesthetic agent is selected from the group consisting of lidocaine, polocaine, etidocaine, lignocaine, xylocaine, novocaine, carbocaine, procaine, prilocaine, bupivacaine, cinchocaine, and mepivacaine. 14. The kit of claim 11, wherein said alpha adrenergic receptor agonist is selected from the group consisting of levonordefrin, epinephrine and norepinephrine. 15. The kit of claim 11, wherein said second container has a volume of between 1.6 mL and 1.8 mL. 16. The kit of claim 11, wherein said second container is a CARPULE. 17. The kit of claim 11, wherein said anesthetic agent and said alpha adrenergic receptor agonist are in said first container. 18. The kit of claim 11, wherein said anesthetic agent and said alpha adrenergic agonist are in separate containers. 19. The kit of claim 11, wherein said alpha adrenergic receptor antagonist is present at a concentration of about 0.05 mg/mL to about 0.25 mg/mL. 20. The kit of claim 11, wherein said alpha adrenergic receptor antagonist is present at a concentration of about 0.25 mg/mL. 21. The kit of claim 11, wherein said second container comprises a dose of an alpha adrenergic receptor antagonist of between about 0.0018 mg to about 0.45 mg. 22. The kit of claim 21, wherein said dose is between about 0.09 mg to about 0.45 mg.