System and method for intranasal administration of lorazepam
First Claim
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1. A pharmaceutical composition for intranasal administration to a mammal that produces a sedative-anxiolytic physiological response in the mammal, the composition consisting essentially of:
- lorazepam;
polyethylene glycol and propylene glycol as a solvent-carrier for the lorazepam;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition; and
a sweetener, wherein the composition forms a spray when discharged from a manually actuated spray device.
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Abstract
A therapeutic composition of lorazepam and its pharmaceutically acceptable derivatives are provided for intranasal administration of at least one predetermined volumetric unit dose in the form of a spray by means that delivers one or more therapeutically prescribed unit doses that are highly accurate as to the volume discharged and which leave no significant quantity of the composition in the delivery means.
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Citations
28 Claims
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1. A pharmaceutical composition for intranasal administration to a mammal that produces a sedative-anxiolytic physiological response in the mammal, the composition consisting essentially of:
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lorazepam;
polyethylene glycol and propylene glycol as a solvent-carrier for the lorazepam;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition; and
a sweetener, wherein the composition forms a spray when discharged from a manually actuated spray device. - View Dependent Claims (2, 3, 4, 5)
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6. A sprayable liquid pharmaceutical composition for intranasal administration in the form of at least one unit-dose to a mammal for the purpose of producing a sedative-anxiolytic response in the mammal, the composition consisting essentially of:
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lorazepam;
polyethylene glycol and propylene glycol as a solvent for the lorazepam;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition, a sweetener, anda preservative, wherein the lorazepam is present in the liquid composition at a concentration of about 1.0 mg/0.1 mL. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method of treating a mammal exhibiting symptoms of anxiety-related disorders, said mammal requiring treatment, the method comprising the steps of:
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a. providing an intranasal spray delivery device;
b. filling the delivery device with a sprayable liquid composition, the liquid composition consisting essentially of;
lorazepam, polyethylene glycol and propylene glycol as a solvent-carrier for the lorazepam;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition, a sweetener, andc. administering a predetermined measured dose of the liquid lorazepam containing composition intranasally to the mammal requiring treatment by spraying the liquid composition droplets from the delivery device into at least one of the mammal'"'"'s nostrils. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A pharmaceutical composition for intranasal administration consisting essentially of:
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lorazepam;
polyethylene glycol and propylene glycol;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition;
and a sweetener. - View Dependent Claims (20, 21, 22, 23)
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24. A pharmaceutical composition for intranasal administration consisting essentially of:
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lorazepam;
polyethylene glycol and propylene glycol;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition;
a sweetener, and a preservative. - View Dependent Claims (25, 26)
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27. A pharmaceutical composition for intranasal administration consisting essentially of:
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lorazepam 10.0 mg;
polyethylene glycol 400 0.18 mL;
propylene glycol 0.09 mL;
butylated hydroxytoluene 0.1 mg; and
saccharin 1.0 mg.
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28. A method of treating a mammal suffering from anxiety comprising intranasally administering a pharmaceutical composition consisting essentially of:
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lorazepam;
polyethylene glycol and propylene glycol;
wherein the polyethylene glycol constitutes from about 15% to about 25% by volume and the propylene glycol constitutes from about 75% to about 85% by volume of the composition;
a sweetener; and
a preservative, wherein the composition achieves a plasma lorazepam Cmax of at least 21 ng/ml when administered intranasally.
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Specification