Tag: generic substitution

23 Feb 2026

NTI-specific substitution laws: which states have special rules for generic drug swaps

Twenty-seven U.S. states have special rules blocking or restricting generic substitution for narrow therapeutic index drugs like warfarin and levothyroxine. Learn which states restrict swaps, why they exist, and how they affect patients and pharmacies.

Read More
28 Nov 2025

Antitrust Issues in Generic Substitution: How Big Pharma Blocks Cheaper Drugs

Big Pharma uses product hopping and REMS abuse to block generic drugs, costing consumers billions. Learn how antitrust laws are being used to fight these tactics and protect affordable medications.

Read More
26 Nov 2025

Provider Case Studies: Real Experiences with Generic Medications

Real provider experiences with generic medications reveal that while most generics work just as well as brand-name drugs, patient trust, state regulations, and formulation differences can impact outcomes - especially for narrow therapeutic index drugs.

Read More