Method for the prevention or removal of crystalline scopolamine in a non-aqueous matrix of a transdermal system
US5662928A · kind A · utility
14Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/46
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for the prevention or removal of undesired crystals of scopolamine from a non-aqueous matrix of a transdermal system in which the scopolamine is dispersed is disclosed wherein the method comprises dynamically heating the scopolamine containing layer during the process of or immediately prior to assembling two laminates which once assembled encase the scopolamine containing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.