Tag: generic drug switching

State Generic Substitution Requirements: Complete 50-State Reference

• Cheryl Moran
• January 29, 2026
• 3 Comments

Generic drug substitution laws vary across all 50 U.S. states and D.C., affecting how pharmacists switch brand-name prescriptions to cheaper generics. Learn which states require substitution, mandate patient consent, or restrict biosimilars-and how this impacts your care and costs.