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Last Updated: December 22, 2024

Claims for Patent: 6,083,993

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Summary for Patent: 6,083,993

Title:	Method for treating bronchospasm using optically pure R(-) albuterol
Abstract:	The optically pure R(-) isomer of albuterol, which is substantially free of the S(+) isomer, is a potent bronchodilator for relieving the symptoms associated with asthma in individuals. A method is disclosed utilizing the optically pure R(-) isomer of albuterol for treating asthma while minimizing the side effects associated with albuterol.
Inventor(s):	Barberich; Timothy J. (Concord, MA), Young; James W. (Still River, MA)
Assignee:	Sepracor Inc. (Marlborough, MA)
Application Number:	09/466,107
Patent Claims:	1. A method of treating bronchospasm in a patient with reversible obstructive airway disease, comprising administering to said patient a therapeutically effective amount of optically pure R-(-) albuterol. 2. A method according to claim 1, wherein the albuterol comprises at least 90% by weight of the R(-) isomer and not more than 10% by weight of the S(+) isomer. 3. A method according to claim 1, wherein the albuterol comprises at least 99% by weight of the R(-) isomer and 1% or less by weight of the S(+) isomer. 4. A method according to claim 1, wherein the optically pure R(-) albuterol is administered by inhalation. 5. A method according to claim 4, wherein the optically pure R(-) albuterol is administered in an amount of about 30 .mu.g to about 90 .mu.g. 6. A method according to claim 1, wherein the optically pure R(-) albuterol is administered orally. 7. A method according to claim 6, wherein the optically pure R(-) albuterol is administered in an amount of about 1 mg to about 8 mg. 8. A method according to claim 6, wherein the optically pure R(-) albuterol is administered as a tablet, capsule or syrup. 9. A method according to claim 7, wherein the optically pure R(-) albuterol is administered as a syrup. 10. A method of preventing bronchospasm in a patient with reversible obstructive airway disease, comprising administering to said patient a therapeutically effective amount of optically pure R-(-) albuterol. 11. A method according to claim 10, wherein the albuterol comprises at least 90% by weight of the R(-) isomer and not more than 10% by weight of the S(+) isomer. 12. A method according to claim 10, wherein the albuterol comprises at least 99% by weight of the R(-) isomer and 1% or less by weight of the S(+) isomer. 13. A method according to claim 10, wherein the optically pure R(-) albuterol is administered by inhalation. 14. A method according to claim 13, wherein the optically pure R(-) albuterol is administered in an amount of about 30 .mu.g to about 90 .mu.g. 15. A method according to claim 10, wherein the optically pure R(-) albuterol is administered orally. 16. A method according to claim 15, wherein the optically pure R(-) albuterol is administered in an amount of about 1 mg to about 8 mg. 17. A method according to claim 15, wherein the optically pure R(-) albuterol is administered as a tablet, capsule or syrup.

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