Quick answer
Yes. Prescription drugs are one of the ACA’s essential health benefits, so Marketplace plans and most other health plans cover them. Each plan covers the drugs on its formulary, its list of covered drugs, and sorts them into tiers that set what you pay. If a drug you need isn’t on the list, your doctor can ask the plan for an exception.
Key takeaways
- ACA plans must cover at least one drug in every category and class, or as many as the state’s benchmark plan, whichever is more.
- Your cost depends on the drug’s tier. Generics usually cost the least and specialty drugs the most.
- Some drugs need prior authorization, or require you to try a cheaper drug first. See what is prior authorization.
- If a drug isn’t covered, ACA plans must answer an exception request within 72 hours, or 24 hours if it’s urgent.
- Medicare drug plans cap yearly out-of-pocket drug costs at $2,100 in 2026, rising to $2,400 in 2027.
On this page
How drug coverage works
Every plan has a formulary. Drugs on it are covered, and drugs left off usually aren’t unless you get an exception. Most plans group covered drugs into tiers:
| Tier | Typical drugs | What you usually pay |
|---|---|---|
| 1 | Generic drugs | The lowest copay |
| 2 | Preferred brand-name drugs | A higher copay or coinsurance |
| 3 | Non-preferred brand-name drugs | More than tier 2 |
| 4 or 5 | Specialty drugs | The most, often coinsurance |
Some plans charge copays for drugs from day one. Others make you meet a deductible first, then charge a copay or coinsurance. See do copays count toward your deductible. What you pay for covered drugs counts toward your out-of-pocket maximum.
Plans also use a few rules to manage costs:
- Prior authorization: your doctor has to get approval before the plan pays.
- Step therapy: you try a cheaper drug first.
- Quantity limits: the plan limits how much you can get at once.
Drugs you get during a hospital stay are usually covered under your hospital benefit, not your pharmacy benefit; see does health insurance cover long hospital stays.
If your drug isn’t covered
- Ask about a covered alternative. A similar drug on the formulary may work for you.
- Request an exception. Your doctor explains why you need this drug, for example because covered drugs didn’t work or caused side effects. If the plan approves, it usually charges the copay for its most expensive covered tier.
- Appeal a denial. You can ask for an independent review. See how to appeal a health insurance claim denial.
- Compare cash prices. A discount card or the pharmacy’s cash price can sometimes beat your copay, but that payment may not count toward your deductible. See what if you can afford your medical bills out of pocket.
- Look for help from the drug maker. Manufacturer coupons and assistance programs can lower costs, though coupons can’t be used with Medicare or Medicaid.
Choosing a plan for your prescriptions
Before you pick a plan, check that your drugs are on its formulary and which tier they’re on. When you shop on HealthCare.gov, you can add your prescriptions to see which plans cover them. Check your pharmacy and your doctors too; see how to find out if a doctor is covered.
Higher metal levels usually mean lower drug copays. If you take expensive drugs, a plan with a higher premium can cost less overall. For more help, see comparing health insurance plans, types of health insurance coverage and the best health insurance companies. For insulin, see does health insurance cover insulin.
Weight-loss drugs are a common gap. Only 19% of large employers cover GLP-1 drugs for weight loss, according to KFF’s 2025 survey. See will health insurance pay for weight-loss programs.
Medicare drug coverage
Medicare Part D and most Medicare Advantage plans cover prescriptions. In 2026, your yearly out-of-pocket drug costs are capped at $2,100 ($2,400 in 2027), and insulin costs no more than $35 a month. Medicare’s negotiated prices for its first 10 drugs, including Eliquis and Jardiance, took effect January 1, 2026, and prices for 15 more, including Ozempic and Wegovy, start January 1, 2027. See who is eligible for Medicare.
If you don’t have insurance
Brand-name drugs can cost hundreds or thousands of dollars a month without coverage, and skipping medicine can lead to bigger health problems. See what can happen if you get sick without health insurance.
Check which plans cover your prescriptions: see quotes by ZIP code.
Frequently asked questions
What is a formulary?
It’s your plan’s list of covered drugs. It usually shows each drug’s tier and any rules, like prior authorization.
Why did my drug’s cost go up?
Plans can move drugs to different tiers or drop them, usually at the start of a new plan year. You may also be paying toward your deductible.
Can I use a discount card with insurance?
You can use a discount card instead of your insurance for a fill, but usually not both. The payment may not count toward your deductible.
How long does a drug exception take?
On ACA plans, 72 hours for a standard request and 24 hours when your health is at risk.
Sources
This article is general information, not medical advice. Last reviewed September 2026.