intrauterinedrugdevices IUDs or intrauterine devices IntraUterine System (IUS) or IntraUterine Drug Delivery System (IUDDS) niosomes. Non-Ionic Surfactant Vesicles (Niosomes) gastro-retentivedrugdeliverysystemm.pptx transdermaldrugdeliverysystem-181012051415 (1).pptx 
