And the list goes much further than that. However I should state that whilst there are dozens of drugs that implement some form of nanotechnology in testing and development at the moment doxyrubicin is the only one I know of off the top of my head that is commercial.
Nanomedicine has many areas on which it focuses, here I've tried to give you a list of different methods of drug delivery/imaging. If you were to include medical devices (prosthetics, surgical tools, monitors) or biomedical research equipment (AFM, lab-on-chip, optical tweezers) the list would explode further
For RNA whilst it's not strictly nanotechnology siRNA can be used in conjunction with nanoengineered systems (i.e. drug delivery) for a wide variety of research and medical applications. The potential for siRNA treatments is astounding, siRNA works by preventing genes forming proteins. This is a fundamental aspect of molecular biology and the ability to manipulate it is highly desirable