Articles tagged with “formulary-tiers”

Drug Formulary Tiers Explained: Step Therapy vs. PA Guide

Learn what drug formulary tiers are and how they affect prescription costs. This guide explains the difference between step therapy and prior authorization poli

45 min read

11/7/2025

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Health Insurance Formulary: What It Is & How It Works

Learn what a health insurance formulary is. This guide explains the drug list, tiers, and cost-sharing used by PBMs to control prescription costs and access.

50 min read

11/1/2025

health insurance formulary drug list formulary tiers pharmacy benefit manager prescription drug coverage cost sharing medicare part d open formulary