Transdermal therapeutic system for application of pharmaceuticals onto the skin
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United States of America Patent
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Jan 27, 1998
Grant Date -
N/A
app pub date -
Mar 27, 1996
filing date -
Oct 1, 1993
priority date (Note) -
Expired
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Abstract
Transdermal therapeutic systems containing as active ingredients oestradiol and norethisterone acetate have added thereto octyldodecanol to reduce or avert crystal formation after storage. The use of octyldodecanol thus makes it possible to produce a storage-stable system with the active ingredients oestradiol and norethisterone acetate with a high thermodynamic activity.
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