A member asked:

I've been off my synthroid (thyroxine) 50 mcg for three weeks now will i go into a coma or something? will it damage my heart? i am starting meds again soon

A doctor has provided 1 answer
Dr. Beth Howell answered

Specializes in Psychiatry

Please restart: Your dose suggests that you have mild to moderate low thyroid. Without your medication you could expect weight gain, hair loss, constipation, depression, feeling cold, and feeling lethargic. In cases of severely low thyroid, coma and heart damage can occur. This is not you now, but please restart your medication.

Answered 1/26/2015

5.4k views

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