Thyroid hormone formulations
First Claim
1. A method of formulating a solid dosage of thyroid hormone, while avoiding instability caused by interaction of the active ingredient with excipients, comprising depositing the active ingredient, as a dry powder substantially free of excipients, onto a pharmaceutically acceptable polymer substrate.
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Abstract
A method is disclosed for formulating a solid dosage of thyroid hormone, while avoiding instability caused by interaction of the active ingredient with excipients. The thyroid hormone may be levothyroxine sodium or triiodothyronine. The method comprises depositing the active ingredient, preferably electrostatically, as a dry powder substantially free of excipients, onto a pharmaceutically acceptable polymer substrate. Solid pharmaceutical dosage forms also are disclosed.
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Citations
13 Claims
- 1. A method of formulating a solid dosage of thyroid hormone, while avoiding instability caused by interaction of the active ingredient with excipients, comprising depositing the active ingredient, as a dry powder substantially free of excipients, onto a pharmaceutically acceptable polymer substrate.
- 8. An improved solid pharmaceutical dosage formulation, comprising a therapeutic amount of thyroid hormone, electrostatically deposited on a pharmaceutically acceptable polymer substrate as a dry powder substantially free of excipients, wherein the average powder particle size is less than about 15μ
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