Dec 2, 2025
Dechallenge and Rechallenge in Drug Side Effects: What These Tests Mean
Tag: levothyroxine
Should You Stay on Brand-Name NTI Drugs When Generic Substitution Is Allowed?
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Should you stick with brand-name NTI drugs or switch to cheaper generics? Learn how narrow therapeutic index drugs work, the real risks of substitution, and what to do if you feel worse after a switch.
