Tag: narrow therapeutic index
Prior Authorization for NTI Drugs: When Insurers Require Brand-Name Medications
NTI drugs like levothyroxine and phenytoin require brand-name consistency for patient safety-but many insurers still force prior authorization for generics. Learn why this practice is dangerous, how state laws are changing, and what patients can do to protect their treatment.
Prescriber Attitudes Toward NTI Drugs and Substitution: What Doctors Really Think
Prescribers remain cautious about substituting generic drugs for narrow therapeutic index medications due to risks of instability and adverse effects. Despite FDA assurances, doctors prioritize patient safety through careful monitoring and controlled switching.