| abstract |
REFERS TO A SYSTEM FOR THE ADMINISTRATION OF DRUGS THAT INCLUDES: A) A CORE CONTAINING ONE OR MORE THERAPEUTICALLY ACTIVE SUBSTANCES; B) A MEMBRANE ENCLOSING THE NUCLEUS; AND C) AN INTERMEDIATE LAYER OF AN INERT MATERIAL SUCH AS SILICA, PYROGENIC AND PRECIPITATED SILICA, AND TALC, THAT IS NOT COVALENTLY BOUND TO THE MATERIAL OF THE CORE OR THE MEMBRANE. SAID SYSTEM IS FOR VAGINAL, INTRAUTERINE, INTRACERVICAL ADMINISTRATION, AMONG OTHERS, BEING USEFUL FOR THE CONTROLLED RELEASE OF THERAPEUTIC SUBSTANCES |