Same med: You can consider synthroid to be the brand name and Levoxyl (thyroxine) the generic name of the same medicine. They are interchangeable, and you should notice no difference at all in the effect of your medication (change). Often times, if i write for synthroid but then sign on the line that says "substitution permitted, " the patient is dispensed Levoxyl (thyroxine) at the pharmacy. No problem.
Answered 2/23/2020
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