Pharmaceutical coating composition and method of use
First Claim
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1. A composition consisting essentially of:
- a combination of ethylcellulose and amphiphilic triblock copolymer surfactant, wherein the amphiphilic triblock copolymer surfactant consists of a triblock copolymer of ethylene oxide-propylene oxide-ethylene oxide and the composition in dry coated form includes 40 wt % to 99.5 wt % ethyl cellulose and 0.5 wt % to 60 wt % of the amphiphilic triblock copolymer surfactant; and
a single organic solvent, wherein the ethyl cellulose and the amphipilic triblock polymer surfactant are each dissolved in the single organic solvent.
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Abstract
A composition is disclosed comprising a polymer and a surfactant in a solvent exhibiting a common solubility for the polymer and the surfactant. The composition provides a dosage form for administering a drug over time.
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Citations
7 Claims
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1. A composition consisting essentially of:
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a combination of ethylcellulose and amphiphilic triblock copolymer surfactant, wherein the amphiphilic triblock copolymer surfactant consists of a triblock copolymer of ethylene oxide-propylene oxide-ethylene oxide and the composition in dry coated form includes 40 wt % to 99.5 wt % ethyl cellulose and 0.5 wt % to 60 wt % of the amphiphilic triblock copolymer surfactant; and
a single organic solvent, wherein the ethyl cellulose and the amphipilic triblock polymer surfactant are each dissolved in the single organic solvent. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification