Your health insurance plan includes a list called a formulary -- a directory of the drugs it covers. If you've ever been stunned at how much it cost you to fill a prescription, it’s possible that ...

Why aren’t all drugs covered by insurance? A formulary is the list of prescription medications covered by a health insurance plan. The list typically has brand-name and generic options. In addition to ...

Each Medicare Part D plan, also known as a prescription drug plan (PDP), has a list of covered medications known as a formulary. Each formulary has tiers. More cost-effective medications, such as ...