Tag: drug substitution
14 March 2026
State Laws on NTI Substitution: Varying Requirements Across the US
State laws on NTI drug substitution vary across the U.S., with some states banning generic swaps for critical medications like warfarin and levothyroxine. While the FDA treats all drugs equally, states act on patient safety evidence-creating a confusing patchwork of rules that impact pharmacists and patients alike.