@janflute i dont know for sure. What I know is, if someone is treatment naive, ie, never had fosamax before, the chance of onj is very small during first few years of treatment from clinical data. You had ~5 year fosamax a long time ago, more than 10 years, presumably all the fosamax that was bound to your bone are gone by now. Are your bone free of fosamax now? That's a question you could ask your endo. If it is, it may not be a bad idea to use it again. But you might not want to use it for too long if another round of FORTEO is in your mind. There are observations that one year use of fosamax wouldn't interfere anabolic effect too mcuh. Then again, each person is different, what works for someone else, may not hold true for you. This deserves a good discussion between you and your endo.