Delivery of antiemetics through an inhalation route
First Claim
1. A composition for delivery of an antiemetic comprising a condensation aerosola) formed by volatilizing an antiemetic under conditions effective to produce a heated vapor of the antiemetic and condensing the heated vapor of the antiemetic to form condensation aerosol particles;
- b) wherein said condensation aerosol particles are characterized by less than 5% antiemetic degradation products, and c) the aerosol has an MMAD less than 3 microns.
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Accused Products
Abstract
The present invention relates to the delivery of antiemetics through an inhalation route. Specifically, it relates to aerosols containing antiemetics that are used in inhalation therapy. In a composition aspect of the present invention, the aerosol comprises particles comprising at least 5 percent by weight of an antiemetic. In a method aspect of the present invention, an antiemetic is delivered to a mammal through an inhalation route. The method comprises: a) heating a composition, wherein the composition comprises at least 5 percent by weight of an antiemetic, to form a vapor; and, b) allowing the vapor to cool, thereby forming a condensation aerosol comprising particles, which is inhaled by the mammal. In a kit aspect of the present invention, a kit for delivering an antiemetic through an inhalation route to a mammal is provided which comprises: a) a composition comprising at least 5 percent by weight of an antiemetic; and, b) a device that forms an antiemetic aerosol from the composition, for inhalation by the mammal.
121 Citations
14 Claims
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1. A composition for delivery of an antiemetic comprising a condensation aerosol
a) formed by volatilizing an antiemetic under conditions effective to produce a heated vapor of the antiemetic and condensing the heated vapor of the antiemetic to form condensation aerosol particles; -
b) wherein said condensation aerosol particles are characterized by less than 5% antiemetic degradation products, and c) the aerosol has an MMAD less than 3 microns.
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2. A composition for delivery dolasetron, granisetron or metoclopramide comprising a condensation aerosol
a) formed by volatilizing dolasetron, granisetron or metoclopramide under conditions effective to produce a heated vapor of dolasetron, granisetron or metoclopramide and condensing the heated vapor of the dolasetron, granisetron or metoclopramide to form condensation aerosol particles; -
b) wherein said condensation aerosol particles are characterized by less than 5% dolasetron, granisetron or metoclopramide degradation products, and c) the aerosol has an MMAD less than 3 microns. - View Dependent Claims (3, 4, 5, 6)
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7. A method of producing dolasetron, granisetron or metoclopramide in an aerosol form comprising:
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a) volatilizing dolasetron, granisetron or metoclopramide under conditions effective to produce a heated vapor of the drug, and b) during said volatilizing, passing air through the heated vapor to produce aerosol particles of the dolasetron, granisetron or metoclopramide comprising less than 5% dolasetron, granisetron or metoclopramide degradation products and an aerosol having an MMAD less than 3 microns. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of producing an antiemetic in an aerosol form comprising:
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a) volatilizing an antiemetic under conditions effective to produce a heated vapor of the antiemetic, and b) during said volatilizing, passing air through the heated vapor to produce aerosol particles of the antiemetic comprising less than 5% antiemetic degradation products and an aerosol having an MMAD less than 3 microns.
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Specification