Thyroid Disorders Treatment During Ramadan
Thyroid

All subjects had the same dietary regimen before and during Ramadan and were encouraged to continue their usual lifestyle and activities during this month.

People with mild to moderate hypothyroidism apparently do not need to adjust their treatments for fasting. if you experience symptoms of hypo- or hyperthyroidism during intermittent fasting, restart normal meals immediately and re-evaluate.
Thyroid disorder treatement patient should take their pills before half hours from iftar or sohoor.

References:

Thyroid Disorders Treatment during Ramadan." Thyroid Diseases and Ramadan. N.p., n.d. Web.