Tag: narrow therapeutic index

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Jan, 14 2026

Carbamazepine Generics: Enzyme Induction and Drug Interactions Explained

Carbamazepine generics can cause dangerous drops in blood levels due to enzyme induction and formulation differences. Learn why switching brands risks seizures, how to prevent interactions, and what to ask your doctor.

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Dec, 25 2025

Multiple Manufacturers: NTI Drugs and Switching Between Generics

NTI drugs like levothyroxine and tacrolimus have a narrow safety margin-small changes in dose or manufacturer can cause serious side effects. Learn why switching generics isn’t always safe, what the data really shows, and how to protect yourself.