abstract |
The invention relates to a delivery system comprising at least one core and a membrane. The core and the membrane consist of an elastomer composition comprising e.g poly (dimethylsiloxane), a siloxane-based elastomer comprising 3,3,3-trifluorpropyl groups attached to the Si-atoms of the siloxane units and/or poly(alkylene oxide) groups, present as alkoxy-terminated grafts or blocks linked to the polysiloxane units by silicon-carbon bonds, or as a mixture of these forms. The delivery system is preferably an implant or an intrauterine, intracervical or intravaginal system. |