Re: Expired Synthroid
I had a similar problem with ineffective medicine, that I took for 13 days. My endo and his nurse both told me that the medicine is generally considered effective for up to 6 months past the expiration date. It is, however, very susceptible to heat damage and should be stored between 68 and 77 degrees at all times. Minor increases or decreases in temp for short periods of time may be acceptable.
Thirteen days of ineffective medication is enough to set you back pretty far. I'm not sure if 5 days is all that bad. I had a major return of my symptoms and I've yet to fully recover. I'm 4 weeks into my unexpired pills.
My endo also told me it takes 1 week for the medicine to start working and 6 weeks to reach it's full potential. So, if you had any labs scheduled for 6 weeks away, I'd try to postpone for another week to allow for those 5 days of practically being unmedicated.
Hope you are feeling better soon!