Modafinil modified release pharmaceutical compositions
First Claim
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1. A pharmaceutical composition in unit dose form, wherein upon administration to a patient, the composition releases two or more amounts of a modafinil compound, comprising:
- a) a core particle comprising an effective amount of a modafinil compound;
b) a first membrane comprising a water-insoluble polymer applied in at least 2 circumferential bands;
c) a second membrane comprising an enteric polymer;
wherein the core particle is coated with the first and second membranes to form an active drug particle; and
d) an immediate release formulation of a modafinil compound;
wherein no substantial release of the modafinil compound from the active drug particle occurs until about three to six hours after administration.
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Abstract
Pharmaceutical compositions comprising modafinil. The pharmaceutical compositions can have a release profile which is different than that of traditional pharmaceutical compositions of modafinil.
7 Citations
22 Claims
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1. A pharmaceutical composition in unit dose form, wherein upon administration to a patient, the composition releases two or more amounts of a modafinil compound, comprising:
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a) a core particle comprising an effective amount of a modafinil compound; b) a first membrane comprising a water-insoluble polymer applied in at least 2 circumferential bands; c) a second membrane comprising an enteric polymer; wherein the core particle is coated with the first and second membranes to form an active drug particle; and d) an immediate release formulation of a modafinil compound;
wherein no substantial release of the modafinil compound from the active drug particle occurs until about three to six hours after administration. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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5. The pharmaceutical composition of claim wherein the water insoluble polymer is selected from the group consisting of ethylcellulose;
- polyvinyl acetate;
neutral copolymers based on ethyl acrylate and methylmethacrylate; and
copolymers of acrylic and methacrylic acid esters having quaternary ammonium groups.
- polyvinyl acetate;
Specification