Hello there.
I can understand your concern.
These cases are to be handeled by a general physician and not a registered medical practitioner.
Also you have not mentioned what he has suggested 100mg. Because the
thyroid hormone supplementation comes in a strengths of micrograms i.e., mcg and not mg.
She can take thyronorm or eltroxin 100mcg once a day daily on an empty stomach. Food is to be taken after half an hour of the tablet.
Kindly consult a general physician hence forth.
Best regards.
Dr. Anil kumar jain.