Antidepressant dosage form
First Claim
Patent Images
1. A dosage form having sustained-release or controlled-release properties for delivering 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol from the dosage form over an extended period of time in a therapeutically responsive dose to produce antidepressant therapy, the dosage form comprising:
- (a) a wall comprising at least in part a composition permeable to the passage of fluid, but not to 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol, which wall surrounds;
(b) a compartment comprising a first layer and a second layer;
(c) a drug composition in the first layer of the compartment comprising 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol and a hydroxypropylalkylcellulose wherein said alkyl is of 1 to 7 carbons or a hydroxyalkylcellulose wherein said alkyl is of 1 to 6 carbons;
(d) a displacement composition in the second layer of the compartment comprising an osmotically active compound; and
(e) an exit passageway in the dosage form for delivering the drug composition from the dosage form.
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Abstract
The invention pertains to a dosage form 10 and to administering an antidepressant medicament 16 for an extended period of time in a rate-known dose.
91 Citations
21 Claims
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1. A dosage form having sustained-release or controlled-release properties for delivering 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol from the dosage form over an extended period of time in a therapeutically responsive dose to produce antidepressant therapy, the dosage form comprising:
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(a) a wall comprising at least in part a composition permeable to the passage of fluid, but not to 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol, which wall surrounds; (b) a compartment comprising a first layer and a second layer; (c) a drug composition in the first layer of the compartment comprising 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol and a hydroxypropylalkylcellulose wherein said alkyl is of 1 to 7 carbons or a hydroxyalkylcellulose wherein said alkyl is of 1 to 6 carbons; (d) a displacement composition in the second layer of the compartment comprising an osmotically active compound; and (e) an exit passageway in the dosage form for delivering the drug composition from the dosage form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dosage form having controlled-release properties for delivering 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol from the dosage form over an extended period of time in a therapeutically responsive dose to produce antidepressant therapy, the dosage form comprising:
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(a) a wall comprising at least in part a composition permeable to the passage of fluid, but not to 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol, which wall surrounds; (b) a compartment comprising a first layer and a second layer; (c) a drug composition in the first layer of the compartment comprising 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol and poly(ethylene oxide); (d) a displacement composition in the second layer of the compartment comprising an osmotically active compound and poly(ethylene oxide); and (e) an exit passageway in the dosage form for delivering the drug composition from the dosage form. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A dosage form having sustained-release or controlled-release properties for delivering 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol from the dosage form over an extended period of time in a therapeutically responsive dose to produce antidepressant therapy, the dosage form comprising:
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(a) a wall comprising at least in part a composition permeable to the passage of fluid, but not to 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol, which wall surrounds; (b) a compartment comprising a first layer and a second layer; (c) a drug composition in the first layer of the compartment comprising 1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]-cyclohexanol and a hydroxyalkylcellulose wherein said alkyl is of 1 to 6 carbons; (d) a displacement composition in the second layer of the compartment comprising an osmotically active compound; and (e) an exit passageway in the dosage form for delivering the drug composition from the dosage form.
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Specification