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For anyone who takes a prescription · Licensed in 20 U.S. states

Your drug formulary,
and how to check it.

A formulary is the list of prescription drugs a health plan covers, also called a drug list. Every Marketplace plan covers prescription drugs, but the list, its tiers, and its limits can differ from plan to plan. Here's how to read a formulary before you enroll, and what to do if a medicine you take isn't on it.

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What a formulary is

The list that decides
which drugs are covered.

HealthCare.gov and federal rules for plans that cover essential health benefits describe how drug lists work:

Lists differ by plan.

A formulary lists the prescription drugs a plan covers. All Marketplace plans cover prescription drugs, but the drugs on each list can differ. When an insurer offers several plans, it must make clear which list goes with which plan.

There is a floor.

These plans must cover at least one drug in every USP category and class, or as many drugs in each category and class as the state's benchmark plan, whichever is greater.

A committee reviews it.

A pharmacy and therapeutics committee reviews the plan's drug list, including its rules for prior authorization, step therapy, and quantity limits.

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Tiers and limits

What can change how you get the same drug.

These points summarize HealthCare.gov, formulary, HealthCare.gov, generic drugs, and 45 CFR 156.122, read October 31, 2026.

If a plan sorts drugs into tiers, its formulary has to show that tiering structure, along with any restrictions on how a drug can be obtained.
Some drugs need prior authorization before the plan covers them. Others come with step therapy, where you try another drug first, or a quantity limit.
A plan may charge a different cost-sharing amount for a covered drug filled at a retail pharmacy, but that cost sharing still counts toward the plan's yearly limit.
Generic drugs have the same active-ingredient formula as the brand-name version and usually cost less. The FDA rates them as safe and effective as brand-name drugs.

The exception rules

Asking for a drug
that is not on the list.

72 hours

How long a plan has to decide a standard request to cover a drug that is not on its formulary.

24 hours

The deadline for an expedited request, when a condition may seriously jeopardize your life, health, or ability to regain maximum function, or you are in a current course of treatment with that drug.

All refills

When a standard exception is granted, the plan must cover the drug for the length of the prescription, including refills.

Deadlines from 45 CFR 156.122(c), read October 31, 2026. They apply to plans that must cover essential health benefits; other plans may follow different rules.

Paul DanielsLicensed health advisor · NPN 20986580

Working with Paul

We check your medicines
against each drug list.

Daniels Health Advisors is the independent brokerage Paul Daniels founded, licensed in 20 U.S. states. Before you choose a plan, we look up each medicine you take on the formulary for that specific plan, note its tier and any prior authorization, step therapy, or quantity limit, and compare Marketplace plans and, where they fit, private PPO options. Some private plans ask health questions, and approval is not guaranteed. Some may not cover care for health problems you had before you enrolled.

Bring the exact name and dose of each medicine, and note which ones are brand-name.

Your medicines checked against each plan's formulary
Licensed in 20 U.S. states · Paul Daniels, NPN 20986580 · FL license G065122
You do not pay us for our help. We are paid by the insurance companies when you enroll. Your price for a plan is the same whether you use us or sign up on your own. Commissions can differ by company.

Your first call

Checking your prescriptions in three steps.

List your medicines

Name, dose, and how often you fill each one.

We check each list

Coverage, tier, and any limits under every plan you are weighing.

Compare the year

Drug costs and premiums side by side.

Book a 15-minute call

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Before you enroll

Check the list
before you enroll.

A plan's drug list is posted for the public, so look at it before you pick the plan, not after the first refill. If an insurer offers several plans, make sure you are reading the list for the one you are considering. If a drug you need isn't covered, you, someone acting for you, or your prescriber can ask for an exception. After the call you will have:

Which plans cover each of your medicines
The tier for each drug on each plan
Any prior authorization or step therapy
How to ask for an exception if needed

A checklist for

Reading a drug formulary.

Find the formulary for the exact plan, not just the insurer, and search by the drug's name and strength.
Note the tier and any restriction listed with the drug, such as prior authorization, step therapy, or a quantity limit.
Ask your doctor whether a generic version or another covered drug would work for you.
If your drug isn't covered, ask about an exception. In plans that cover essential health benefits, a standard request must be decided within 72 hours.

Formulary questions

Drug formulary FAQ.

What is a drug formulary?

A formulary is a list of prescription drugs covered by a health plan or prescription drug plan, also called a drug list. Lists can differ from plan to plan, and a list shows any tiers and any limits on how a drug can be obtained.

How do I find out if my medication is covered?

Look up the formulary for that plan on the insurer's website. Plans that cover essential health benefits must post a current, complete list that anyone can view without creating an account or entering a policy number. You can also call the plan, or ask us to check before you enroll.

What if my medication isn't on the formulary?

You, someone acting for you, or your prescriber can ask the plan for an exception. For a standard request, the plan must decide within 72 hours; for an expedited one, within 24 hours. If the plan says no, you can ask for an independent outside review.

Does a drug covered by an exception count toward my out-of-pocket limit?

Yes, for plans that must cover essential health benefits. Federal rules say any cost sharing you pay for a drug granted through an exception counts toward the plan's yearly limit on cost sharing.

Are generic drugs as good as brand-name drugs?

The FDA rates generic drugs as safe and effective as brand-name drugs. A generic has the same active-ingredient formula and usually costs less. Ask your doctor whether one fits your treatment.

Do I have to wait for open enrollment?

Not for every plan. A private plan (not from the Marketplace) can often be bought any time of year. Some private plans ask health questions, and approval is not guaranteed. Some may not cover care for health problems you had before you enrolled. Marketplace plans, and other plans that follow ACA rules, work differently. As of October 31, 2026, under current law, open enrollment for 2027 plans on HealthCare.gov runs from November 1, 2026, to January 15, 2027. To start coverage January 1, pick a plan by December 15. States that run their own Marketplace may set different dates, so check with your state's Marketplace. A federal appeal about these rules is pending (City of Columbus v. Kennedy, 4th Cir. No. 26-1938; oral argument was set for October 30, 2026), so confirm the dates before you enroll. Outside open enrollment, you need a special enrollment period, such as one after losing job-based coverage.

Find a plan that covers
your prescriptions.

Book a 15-minute call to check your medicines against each plan, or see quotes online.

Book a 15-minute call Get a quote online

By Paul Daniels, licensed insurance agent (NPN 20986580).

Disclaimer

Daniels Health Advisors LLC is an independent brokerage, not a carrier, HealthCare.gov, or CMS. Agent: Paul Daniels, NPN 20986580, Florida license G065122. This page explains formularies in general. Drug lists, tiers, and limits vary by plan, so check the plan's current formulary. Ask your doctor before changing any medicine. The deadlines are federal rules for plans that must cover essential health benefits, not a promise about any one plan. Tax credits, plans, networks, and prices depend on your state, zip code, income, and household. We never guarantee approval, a doctor, or a price. Not medical, legal, or tax advice.

Your drug formulary,and how to check it.

The list that decideswhich drugs are covered.