Storage stable thyroxine active drug formulations and methods for their production
First Claim
1. A storage stable pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of a thyroxine active drug and an amount of an antioxidant sufficient to inhibit oxidative degradation of said drug.
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Accused Products
Abstract
This invention provides a storage-stable dosage form of a thyroxine active drug composition which exhibits an improved stability. The formulation contains a thyroxine active drug substance and an antioxidant, and, optionally, additional pharmaceutically accepted excipients. Levothyroxine sodium is the preferred active drug substance, butylated hydroxyanisole is the preferred antioxidant. Additional preferred excipients include, for example, microcrystalline cellulose, sucrose, mannitol, crospovidone, magnesium stearate, colloidal silicon dioxide, and sodium lauryl sulfate.
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Citations
36 Claims
- 1. A storage stable pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of a thyroxine active drug and an amount of an antioxidant sufficient to inhibit oxidative degradation of said drug.
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7. A storage stable pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of a thyroxine active drug and an antioxidant in the amount of about 0.001% to about 2% of the total weight of said composition.
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9. A storage stable pharmaceutical composition in unit dosage form which comprises levothyroxine sodium in a therapeutically effective amount and butylated hydroxyanisole in an amount of about 0.01% of the total weight of said composition.
- 10. A storage stable pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of a thyroxine active drug, an amount of an antioxidant sufficient to inhibit oxidative degradation of said drug, a stabilizing amount of an alditol, a stabilizing amount of a saccharide, and optionally further comprises other pharmaceutically acceptable excipients.
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24. A storage stable pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of a thyroxine active drug, an antioxidant in an amount of about 0.001% to about 2% of the total weight of said composition, an alditol in the amount of about 5% to about 90% of the total weight of said composition, and a saccharide in an amount of about 5% to about 70% of the total weight of said composition.
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25. A storage stable pharmaceutical composition in unit dosage form which comprises levothyroxine sodium in a therapeutically effective amount, butylated hydroxyanisole in an amount of about 0.01% of the total weight of said composition, mannitol in the amount of about 58% of the total weight of said composition, and sucrose in an amount of about 14% of the total weight of said composition.
- 27. A storage stable oral pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of levothyroxine sodium, an amount of butylated hydroxyanisole sufficient to inhibit oxidative degradation of said drug, a stabilizing amount of mannitol, a stabilizing amount of sucrose, and optionally further comprises other pharmaceutically acceptable excipients.
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31. A storage stable oral pharmaceutical composition in unit dosage form which comprises a therapeutically effective amount of levothyroxine sodium, butylated hydroxyanisole in an amount of about 0.001% to about 2% of the total weight of said composition, mannitol in an amount of about 5% to about 90% of the total weight of said composition, sucrose in an amount of about 5% to about 70% of the total weight of said composition, and optionally further comprises microcrystalline cellulose, polyvinylpyrrolidone, crospovidone, magnesium stearate, sodium lauryl sulfate, and colloidal silicon dioxide.
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32. A storage stable oral pharmaceutical composition in unit dosage form which comprises:
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(a) a therapeutically effective amount of levothyroxine sodium;
(b) about 0.01% by weight butylated hydroxyanisole;
(c) about 58% by weight mannitol;
(d) about 14% by weight sucrose;
(e) about 25% by weight microcrystalline cellulose;
(f) about 1.5% by weight polyvinylpyrrolidone;
(g) about 1.4% by weight magnesium stearate;
(h) about 0.3% by weight colloidal silicon dioxide; and
(i) about 0.1% by weight sodium lauryl sulfate.
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33. A storage stable oral pharmaceutical composition in unit dosage form which comprises:
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(a) a therapeutically effective amount of levothyroxine sodium;
(b) about 0.01% by weight butylated hydroxyanisole;
(c) about 39% by weight mannitol;
(d) about 23% by weight sucrose;
(e) about 28% by weight microcrystalline cellulose;
(f) about 1.5% by weight polyvinylpyrrolidone;
(g) about 6% by weight crospovidone;
(h) about 2% by weight magnesium stearate;
(i) about 0.3% by weight colloidal silicon dioxide; and
(j) about 0.1% by weight sodium lauryl sulfate.
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Specification