Improved estradiol implant composition and method for preparation.

摘要

The invention relates to biodegradable compositions which continuously release estradiol in a uniform manner over extended periods of time and do not exhibit initial release of undesirably high levels of active ingredient. The invention also relates to a method for preparation of the compositions, and a method for administering estradiol parenterally to feedlot animals in a continuous and uniform fashion over extended periods of time.