Tag: NTI drugs
Prescriber Attitudes Toward NTI Drugs and Substitution Practices
Caspian Mortensen Jan, 29 2026 4Prescribers remain divided on substituting generic versions of narrow therapeutic index (NTI) drugs like warfarin, lithium, and levothyroxine. While generics are FDA-approved, many doctors worry about small changes in blood levels causing serious harm. State laws, patient safety, and emerging data are shaping how these swaps happen.
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Theophylline Levels: Why NTI Monitoring Is Critical for Safe and Effective Treatment
Caspian Mortensen Jan, 26 2026 9Theophylline is a powerful but risky asthma and COPD medication with a narrow therapeutic window. Without regular blood monitoring, even small changes in dose or other medications can cause life-threatening toxicity. Learn why NTI monitoring is essential for safety.
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Lithium Carbonate Generics: Serum Level Considerations for Safe and Effective Treatment
Caspian Mortensen Dec, 22 2025 8Lithium carbonate generics require careful serum level monitoring due to their narrow therapeutic index. Switching brands without testing can lead to toxicity or treatment failure. Learn why formulation differences matter and how to stay safe.
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