A 20-30% increase in thyroxine
dose is needed in pregnancy
. That is why your thyroxine dose were increased.
The recommendation is to test the thyroid function tests
every month (TSH
and total T4) in pregnancy. If your TSH goes above 2.5 miu/l you may need to increase the dose after consulting a doctor.
Hope I have answered your querry
Dr Ajish TP