Euthyrox Batch #188592

Euthyrox Batch #188592 - Exp. 08/2017 Manuf. Date 09/2014 - is faulty. I have been taking this for 6 months - same batch. There has been at least a 10% shortfall in dosage in each 30-pack of tablets i.e. 3 or more tablets have been malformed, with the result that each of the malformed tablets has had less than the stated dosage of .1Ug.