Tag: narrow therapeutic index

When Your Doctor Might Prescribe Brand-Name Only and Why

When Your Doctor Might Prescribe Brand-Name Only and Why

Doctors rarely prescribe brand-name drugs only - but when they do, it’s usually because the medicine has a narrow therapeutic index. For drugs like levothyroxine or warfarin, even small differences in absorption can be dangerous. Learn when generics are safe - and when they’re not.

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Pharmacist Concerns About NTI Generics: What Every Provider Needs to Know

Pharmacist Concerns About NTI Generics: What Every Provider Needs to Know

Pharmacists are raising alarms about NTI generics like warfarin and levothyroxine, where tiny differences in bioavailability can cause serious harm. Here's what they're seeing, why it matters, and what's being done.

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