Dose of Thyronorm for Hypothyroidism

Dear Ask The Doctor: Hi this is Lakshmi from Chennai, i have hypothyroidism and right now i am taking thyronorm 75 mcg, my recent report which i took in the month of April is T3(total) 119.0(normal is 80-200 T4(total 10.56(4.6-12.0 TSH 1.51mIu(0.7-4.20 i just want to whether the dosage i am taking is right i sometimes have irregular periods. and puffiness of face my weight is 57kg and my height is 158cm..please help

Dear Lakshmi: For the management of hypothyroidism, the dosage of thyroid medications need to be individualised based on a variety of factors including the patient's age, body weight, cardiovascular status or any other concomitant medical conditions. Your hormone levels seem to fall within the normal range, however if you still experience symptoms the dose may be increased to control these symptoms as the main stay of hypothyroid treatment is to titrate the dose for a symptom free state while keeping the thyroid hormone levels within the normal range. Based on your weight, the dose of thyronorm may be increased up to 90 - 100 mcg maximum for symptom relief.