Stabilized formulations of alpha adrenergic receptor antagonists and the uses thereof
First Claim
1. A stable liquid formulation consisting essentially of about 0.02 mg to about 0.43 mg of an alpha adrenergic receptor antagonist, a buffer for maintaining pH, an aqueous solvent, a metal chelator, optionally a tonicity modifier, optionally an antioxidant, and optionally a complexing agent, wherein said composition has a pH of between about 2.0 and 6.0.
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Abstract
The present invention provides compositions and stable liquid formulations comprising alpha adrenergic receptor antagonists and use thereof for increasing blood flow. In one embodiment, the stable liquid formulations of this invention are useful for reversing the effects of an anesthetic agent, preferably a long-lasting local anesthetic agent administered in conjunction with an alpha adrenergic receptor agonist.
42 Citations
27 Claims
- 1. A stable liquid formulation consisting essentially of about 0.02 mg to about 0.43 mg of an alpha adrenergic receptor antagonist, a buffer for maintaining pH, an aqueous solvent, a metal chelator, optionally a tonicity modifier, optionally an antioxidant, and optionally a complexing agent, wherein said composition has a pH of between about 2.0 and 6.0.
- 26. A stable liquid formulation consisting essentially of about 0.02 mg to about 0.43 mg of an alpha adrenergic receptor antagonist, a buffer for maintaining pH, an aqueous solvent, a metal chelator, optionally a tonicity modifier, optionally an antioxidant, and optionally a complexing agent.
Specification