PHOSPHOLIPID-BASED POWDERS FOR DRUG DELIVERY
First Claim
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1. A method for producing a phospholipid particulate composition comprising:
- adding a polyvalent cation to a formulation comprising a phospholipid;
drying said formulation to form a dry particulate composition comprising hollow and porous particles.
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Abstract
Phospholipid based powders for drug delivery applications are disclosed. The powders comprise a polyvalent cation in an amount effective to increase the gel-to-liquid crystal transition temperature of the particle compared to particles without the polyvalent cation. The powders are hollow and porous and are preferably administered via inhalation.
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Citations
20 Claims
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1. A method for producing a phospholipid particulate composition comprising:
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adding a polyvalent cation to a formulation comprising a phospholipid; drying said formulation to form a dry particulate composition comprising hollow and porous particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification