SALT STABLE LECITHIN ORGANOGEL COMPOSITION
First Claim
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1. A lecithin organogel composition comprising:
- non-ionic oil-in-water (“
O/W”
) emulsifier agent having a hydrophile-lipophile balance (“
HLB”
) ranging from about 8 to about 18;
non-ionic water-in-oil (“
W/O”
) emulsifier agent having a hydrophile-lipophile balance (“
HLB”
) ranging from about 1 to about 8;
inorganic hydrocolloid;
organic hydrocolloid;
biocompatible surfactant;
nonpolar solvent;
saturated fatty alcohol;
moisturizer;
preservative;
chelating agent; and
mixtures thereof
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Abstract
A lecithin organogel (“LO”) operates as a transdermal pharmaceutical delivery composition. In particular, the lecithin organogel comprises an internal oil phase containing oil-in-water (“O/W”) and water-in-oil (“W/O”) emulsifiers, and an aqueous phase comprising inorganic and organic hydrocolloids. The lecithin organogel may contain up to 80% additive ingredients, including biocompatible surfactants, nonpolar solvents, saturated fatty alcohols, moisturizers, preservatives or antimicrobials, and chelating agents.
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Citations
11 Claims
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1. A lecithin organogel composition comprising:
-
non-ionic oil-in-water (“
O/W”
) emulsifier agent having a hydrophile-lipophile balance (“
HLB”
) ranging from about 8 to about 18;non-ionic water-in-oil (“
W/O”
) emulsifier agent having a hydrophile-lipophile balance (“
HLB”
) ranging from about 1 to about 8;inorganic hydrocolloid; organic hydrocolloid; biocompatible surfactant; nonpolar solvent; saturated fatty alcohol; moisturizer; preservative; chelating agent; and mixtures thereof - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification