Thyroid UK has been informed by some members that one particular batch of Tiromel T3 they are purchasing online is causing problems for them.  It seems that this batch is causing a return of hypothyroid symptoms and low FT4 levels with high TSH levels.

The batch has batch number 17K633 on the blister pack with an expiry date of May 2021 but batch number 20H100 with an expiry date of May 2021 on the box.

If you are purchasing this brand, do be very careful and check the batch numbers beforehand, if you can, but if not check when you receive them.