SUBLINGUAL FENTANYL SPRAY
First Claim
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1. A sublingual formulation comprising from about 0.1% to about 0.9% by weight fentanyl, a free base or a pharmaceutically acceptable salt thereof, or a derivative thereof, from about 20% to about 60% by weight ethanol and from about 4% to about 6% by weight propylene glycol.
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Abstract
The present invention is directed to sublingual formulations containing fentanyl, a pharmaceutically acceptable salt thereof, or derivative thereof, suitable for administration to a patient, and methods for treatment with the formulations.
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4 Claims
- 1. A sublingual formulation comprising from about 0.1% to about 0.9% by weight fentanyl, a free base or a pharmaceutically acceptable salt thereof, or a derivative thereof, from about 20% to about 60% by weight ethanol and from about 4% to about 6% by weight propylene glycol.
Specification