A warning to those of us who are lucky enough to be prescribed T3 - make sure that the pills you are given are actually in date. I opened a pot of T3 that was dispensed by Boots on the 22nd July this year and noticed that the use by date was the 10th August 2017. As the pills are supposed to last me a month they were out of date half way through. Boots cannot believe that this has happened, stringent checks etc by supplier and themselves, but it has happened and they are going to replace them. I have noticed also that the use by date is never very long after the dispensed date, only ever a few months at most. At nearly £400.00 a month I don't think this is good enough.