Anyone using Estring?

Yes - have been using it for 4-5 years now.  My MO prefers it to estrogen creams because it gives a very low constant dose, as opposed to a large variable dose.  After a time of this steady low dose, the vaginal tissues plump up and very little of the estrogen gets into the bloodstream.  My MO tested my estradiol levels after I'd been on it for a few years and they were well within the desired range. 

On it too, works very well.  The va jay jay is pink again and very moist (sorry if TMI).  MO is okay with it while I am on tamoxifen.  Made a big difference for me.