I know this may have been addressed elsewhere, but my dr just changed the strength of my levoxyl (thyroid) med and I now have about 2 and half months of the old strength to store. I recently went to getting 3 months at a time and the scrip was changed 2 weeks into this bottle. Of course when I go on line it says to toss the stuff after a year. But I keep reading that I can possibly store it longer than a year but I need to store it properly to keep it viable. Any suggestions?