T3 (liothyronine) or T4: T4 is the major thyroid hormone in the blood and a small fraction is also converted to T3 (liothyronine). T4 is preferred. Adding T3 (liothyronine) tablets adds more cost and limited extra value. Sometimes T3 (liothyronine) is necessary but not often.
Answered 2/17/2015
3.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question