thyroxin antibodies

Is any case known in Israel where an immune response to eltroxin medication was observed? namely, a remarkable increase in thyroglobulin Ab titer was measured following oral administration of elthroxin 50mg 4 times a week for about 6 weeks.

The most common cause for Hypothyroidism and" eltroxin" treatment is autoimmune: the production of thyroglobulin Ab or other antibodies which destroy the thyroid gland. In your case the finding of this antibodies represent the underlying nature of your disease (most probably) and it is not due to reaction to the drug you are taking.