Tag: phenytoin

Phenytoin and Generics: What You Need to Know About Therapeutic Drug Monitoring
Phenytoin and Generics: What You Need to Know About Therapeutic Drug Monitoring
Dec, 26 2025 Medications Bob Bond
Phenytoin has a narrow therapeutic range and unpredictable metabolism, making therapeutic drug monitoring essential - especially when switching between brand and generic versions. Learn when and how to monitor levels safely.