Thyroid Medicine
Answers to common questions about thyroid medicine.
Questions on this page
How is hypothyroidism treated?
The usual treatment is levothyroxine, which replaces the thyroid hormone your body is lacking.
Do I need thyroid medicine lifelong?
Many people with permanent hypothyroidism need long-term treatment.
However, the duration depends on the cause of hypothyroidism.
When should I take levothyroxine?
It is usually taken consistently on an empty stomach, with appropriate separation from foods and medicines that interfere with absorption.
Your doctor will advise you on the best timing for your situation.
Can I take thyroid medicine with tea or coffee?
Tea and coffee can interfere with absorption if taken too close to levothyroxine.
It is generally better to take levothyroxine with water and follow a consistent timing routine.
Can calcium tablets affect thyroid medicine?
Yes.
Calcium and iron supplements can reduce levothyroxine absorption.
They should generally be separated from levothyroxine by several hours.
Why does my TSH change even though I take the same dose?
Possible reasons include:
- Changes in medication timing
- Missed doses
- Change in brand/formulation
- Calcium or iron supplements
- Other medicines
- Changes in body weight
- Pregnancy
- Changes in thyroid function