While there are a LOT of websites out there re: thyroid health, many of the studies, many of the articles, many of the suppositions are by the same circle of pharmaceutical companies, or same authors, etc… You will come across some of the same names on multiple sites. That said, here’s a pretty good list of Frequently Asked Questions re: thyroid meds.
I’ve also found that thyroid hormones are sensitive to temperature changes (i.e. bathroom cabinet near shower, or purse left in car, may not be good options). Some thyroid meds are also sensitive to those scans done by the post office… check with your doctor! (When I come across the info again, I’ll post it here).