Day: 20 September 2026

How Long After Changing Thyroid Medication Should TSH Be Rechecked? Written by Dr. Albana Greca, Family Physician For most adults taking levothyroxine for hypothyroidism, TSH is usually rechecked about 6 to 8 weeks after starting treatment or changing the dose. Testing much earlier can be misleading because levothyroxine has a long half-life and the pituitary-thyroid […]