Hi all, I have been taking 200 mcg selenium supplement four hours after 75 mcg sodium levothyroxine for a year. My last annual blood tests showed that my TSH 3.48 no test for T4. Doctor at that time said under 5 is normal. The current annual blood test now shows TSH 7, T4 is 17. Dr will increase current dosage 75 mcg to 100 mcg. Clearly in my case selenium has not helped and I take a good quality selenium supplement. I take Actavis brand for the levo. Should I continue to take selenium? Your comments much appreciated. Thank you.