What is going on with levothyroxine.
D017277:Drug Approval / Q000331:legislation & jurisprudence; D005260:Female; D006801:Humans; D008297:Male; D013974:Thyroxine / Q000008:administration & dosage; D014481:United States; D014486:United States Food and Drug Administration / Q000592:standards
D013974:Thyroxine