Aetna Foundayo Prior Authorization: What Aetna Actually Requires in 2026

Disclosure: Some links on this page are affiliate links. If you use them, we may earn a commission at no extra cost to you. It never changes the criteria we report or the treatment path we recommend.

We read Aetna's non-Medicare policy bulletin 6450-C, Aetna's current Standard Plan drug guide, Aetna's January, July and October 2026 formulary notices, Aetna's medical exception instructions, Aetna's pharmacy FAQ, the CMS Medicare GLP-1 Bridge pages, the FDA approval announcement and prescribing information for Foundayo, FDA's compounding guidance, and the current pricing and service pages from Lilly, Ro and Sesame.

---

If your non-Medicare Aetna plan applies policy 6450-C, Aetna Foundayo prior authorization asks for three things: you're 18 or older, you have a documented starting BMI of 35 or higher, and you completed at least six months in a comprehensive weight-management program before starting drug therapy. A first approval lasts eight months. Your plan can still exclude weight-loss drugs or use different rules, so confirm the policy number before filing.

Here's the part almost nobody tells you.

Read five other articles about this and you'll see the same numbers over and over: BMI 30, or BMI 27 with a health condition. That is how many pages summarize obesity and overweight.

The FDA-approved indication in the Foundayo label does not set Aetna's BMI 35 bar. It says adults with obesity, or adults with overweight plus at least one weight-related condition. In the label's main weight-loss trial, obesity meant BMI 30 or higher, while overweight meant BMI 27 to under 30 plus a condition.

It is not Aetna's number.

Aetna's policy 6450-C — if your plan applies it — is literally titled "Weight Loss (BMI 35)." Same drug, same person, different question being asked.

That gap can sink a complete-looking request. And it's why the rest of this page is worth ten minutes of your time: we're going to show you the exact rulebook, what to hand your doctor, where it gets sent, which deadlines are actually published, what happens on October 1, and what to do if you're under BMI 35.

---

This page is for you if:

• You have an Aetna plan through work, or one you bought yourself (non-Medicare).
• Your pharmacy or your portal said Foundayo needs prior authorization.
• Your doctor is about to file — or already filed and you're waiting.

This page is not the right one if:

• You have Aetna Medicare. Policy 6450-C is not your weight-management path. The CMS Medicare GLP-1 Bridge may apply if you meet its rules. Jump to that section →
• Your plan excludes weight-loss drugs entirely. Paperwork usually can't fix a contract. Jump to that section →
• You want to compare Foundayo with Zepbound or decide which drug fits. Read Foundayo vs. Zepbound or use Find My GLP-1 Path instead.

---

First: figure out which of three problems you actually have

This is the step most people skip, and skipping it is how weeks get lost.

"Aetna won't cover my Foundayo" can mean three completely different things. Each one has a different fix. Two can have a paperwork path. One usually doesn't — at least not with a prior authorization form.

Write down the exact words. Screenshot them. Every good decision on this page depends on which row you're in.

### ▶ Step one, free, five minutes Log in at Aetna.com, open the drug search, and look up Foundayo and then orforglipron. Write down: covered or not, the tier, any PA or QL flag, the estimated cost, the policy number if shown, and today's date. Check Foundayo in my Aetna plan → No signup with us. No affiliate link. This is just the first thing that has to happen.

---

The RX Index is the independent GLP-1 decision resource that scores telehealth providers and treatment paths on clinical legitimacy, care quality, transparency, access, and cost, so readers can choose the path that fits their situation.

The right GLP-1 provider isn't the same for everyone — it depends on your state, your insurance and formulary, whether you want an FDA-approved or compounded medication, your preferred treatment path, and your budget. Because a general answer can't resolve those for you, use The RX Index's Find My GLP-1 Path tool to get a personalized provider match with source-checked pricing before you choose.

---

What are the Aetna Foundayo prior authorization requirements?

If your plan applies Aetna's non-Medicare policy 6450-C, the adult weight-loss criteria for Foundayo are: you must be 18 or older, have a baseline BMI of at least 35 kg/m², and have taken part in a comprehensive weight-management program — behavior change, a reduced-calorie diet, increased physical activity and continuing follow-up — for at least six months before using drug therapy. Aetna expressly marks the baseline BMI as “documentation required.” The six-month program is still a required criterion, so send records that show it happened.

That's the whole adult test. Three lines. We read the policy end to end on August 14, 2026, and there is no separate Foundayo step-therapy line hiding in it.

Which means two things are true at once, and both matter:

It's shorter than you feared. No "try Wegovy first" rule appears in 6450-C. No A1c is listed. No separate comorbidity list is listed for Foundayo's adult weight-loss pathway. If someone told you that you have to fail an injection before you can get the pill, ask them to point at the line. (Your individual plan can use different rules or add its own step therapy. Check your plan documents.)

And it's harder than you were told. BMI 35, flat. There's no "27 with high blood pressure" option on this door.

The exact criteria, and the record that proves each one

Define it once: a baseline BMI is your body mass index at the start of drug therapy, not after the medication has already lowered your weight. Aetna cares about where you started, not where you are today.

The rule that quietly rescues a lot of people

Buried in 6450-C is a note that changes the answer for anyone switching medications. Aetna says that if a patient is transitioning from another weight-loss drug, the reviewer should consider the baseline BMI at the start of any drug therapy.

Read that again if you've been on a GLP-1 before.

If you started Wegovy two years ago at BMI 38 and you're now at 31, policy 6450-C points the reviewer back to the 38 — not the 31. Losing weight on the last drug is not supposed to erase the starting number for this policy. Make sure your doctor's office sends the old dated record and clearly says this is a transition from prior weight-loss therapy.

The five-door comparison inside policy 6450-C

Here's the thing that makes 6450-C worth reading closely. It isn't one rulebook. It's five doors into the same building, and each door has a different BMI or clinical test on it. We pulled every one out of the policy and put them side by side:

Look at the spread. The adult weight-loss door has a baseline BMI bar of 35, while the Wegovy heart-risk door starts at 27. Foundayo appears only in the adult weight-loss door. It isn't listed for sleep apnea. It isn't listed for MASH. It isn't listed for teenagers. One door, and it's the tallest one.

That single table explains more denials than any list of “tips” ever will.

If your BMI is under 35, read this before you give up

You have four honest options. None of them involve fudging a number.

1. Check your real baseline, not your current one. If you've taken another weight-loss drug, your qualifying number may be from the start of that therapy. See the transition rule above.
2. Ask whether your plan actually uses 6450-C. Employers and plans can use different benefits and rules. Ask the rep: “Which policy number is being applied to my request?” Get the number.
3. Ask whether a different drug has a medically appropriate pathway for a condition you truly have. For example, tirzepatide has a separate moderate-to-severe sleep-apnea pathway at BMI 30 in 6450-C. That's a treatment decision with your prescriber, not a workaround for Foundayo.
4. Go cash pay while you sort it out. Foundayo's published self-pay price starts at $149 for a 30-day supply of the 0.8 mg dose. More on that further down.

### ▶ Free: the 6450-C checklist for your doctor's office One section. Every adult Foundayo criterion in 6450-C, the record that supports it, and the submission numbers. Print it or send the link so the office isn't guessing. Open the Aetna Foundayo criteria checklist → No email required. Nothing to sign up for.

---

Is Foundayo on Aetna's drug list — and what changes on October 1, 2026?

Yes on the Aetna Standard Plan template we verified: the August 1, 2026 drug guide lists Foundayo as NPB, meaning non-preferred brand. Aetna has also published October 1 notices for three templates — Aetna Standard Plan, Advanced Control Formulary and Standard Control Formulary Choice — stating that Foundayo is scheduled to move from non-preferred to preferred. That may lower cost sharing, but it does not guarantee that your plan covers weight-loss drugs or tell you your exact price.

We found this in Aetna's own current guide and update notices, and it's the single most useful fact on this page for anyone deciding whether to file now or wait.

What the documents say

All three October notices also list Zepbound as a formulary addition in the antiobesity class.

Find the template name tied to your own plan. Aetna's public guide is useful, but your logged-in member search, plan documents and member notice control your answer.

How Foundayo got there — the verified timeline

We pulled these dates from FDA, Aetna and CVS Caremark documents. The path is stranger than “it got added.”

Aetna's drug guide says it uses an independent National Pharmacy and Therapeutics Committee to approve safe and clinically effective drug therapies.

Aetna describes that committee as an external advisory body that includes physicians, pharmacists, a pharmacoeconomist and a medical ethicist. Its voting members are not CVS Caremark employees and must disclose financial ties to drugmakers.

So: no named January change, FDA approval April 1, policy April 10, the CVS block removal June 1, no named July change, a live NPB listing August 1, and a preferred move scheduled for October 1. Seven checkpoints, one drug.

Your state may delay October 1 for you

This is the granular part, and it's the part a general answer can never give you.

Aetna's August 2026 Standard Plan guide says some drug-coverage changes do not take effect mid-year for commercial fully insured plans in the states below. They may wait for the plan's renewal date.

What that means in plain terms: if you have a commercial fully insured plan in one of those states, the October 1 improvement may not reach you until renewal. Aetna's quoted delay rule is written for fully insured plans. Do not guess how your self-funded plan will handle it.

One question to your HR or benefits person settles the first part: “Is our plan fully insured or self-funded?” Then ask whether the October 1 formulary notice applies to your exact plan.

Go find your notice — and check the portal

Aetna's guide says it provides member and provider notice 60 days before formulary changes. Sixty days before October 1 is about August 2.

Check your mail, your Aetna message center and your logged-in drug search. Those are the places that can connect the public change to your plan and your cost.

If Aetna covers it, check the manufacturer savings card

A preferred tier is not the last price check. Lilly currently advertises a Foundayo Savings Card that may lower an eligible commercially insured patient's cost to as little as $25 per 30-day fill when the plan covers Foundayo. Government-program beneficiaries are excluded. The current terms cap savings at $100 per 30-day fill and $1,000 per calendar year, allow up to 10 fills, and expire December 31, 2026.

The card does not create Aetna coverage, erase a deductible or guarantee a $25 price. Read the live terms before each fill. Check the official Foundayo savings terms → No affiliate link.

---

What should my doctor send with the Aetna Foundayo request?

The strongest Foundayo request maps one record to each criterion in the policy your plan is actually using. Under 6450-C, Aetna expressly requires documentation of the baseline BMI. The six-month program is also a required criterion, so send dated records that show the program, its four parts and continuing follow-up. A file that states the criteria without showing the records can come back for more information or be denied.

Print this and hand it over. Seriously — office staff handle a lot of forms, and a mapped checklist removes the guesswork.

Who you are

• Full name and date of birth
• Member ID and group number from the card
• Plan name exactly as printed
• What the member portal returned, with the date checked
• Prescriber name and NPI

What's being asked for

• Foundayo (orforglipron), strength and day supply
• Whether this is a new request or a continuation
• The policy number Aetna is applying, if you got one

The clinical proof — one record per criterion

• Dated height, weight and BMI from the start of drug therapy
• If switching from another weight-loss drug: the baseline BMI at the start of that therapy, clearly labeled as a transition
• Weight-management program name and dates
• Notes showing behavior-change counseling, a reduced-calorie diet and an activity plan
• Records showing continuing follow-up across at least six months
• A statement that Foundayo will be used with a reduced-calorie diet and increased physical activity
• Relevant chart notes attached to the request

What not to lean on

• A current BMI with no dated starting point
• “Patient has tried diet and exercise” with nothing behind it
• A generic letter of medical necessity that never names the criterion it supports
• FDA approval by itself
• A claim that step therapy was completed when the plan never asked for it

And one line that shouldn't need saying, but does: never ask a prescriber to record a diagnosis you don't have. Prescribers attest to these requests. It isn't worth it, and a clean denial you can correct or appeal beats a false statement you can't take back.

---

How does the Foundayo request actually get to Aetna?

Aetna publishes separate routes for standard pharmacy prior authorization and for a medical exception. For a covered non-specialty drug, a prescriber can submit through CoverMyMeds, call 1-800-294-5979 or fax 1-888-836-0730. A member or prescriber can request a medical exception by calling 1-855-582-2025, faxing 1-855-330-1716 or mailing Aetna PA at 1300 E. Campbell Rd., Richardson, TX 75081. Your ID card and plan documents control.

There are two doors here, and which one you use depends on which problem you have.

Door 1 — the drug is covered, it just needs approval

Your prescriber files. Aetna's published channels are:

Small thing worth knowing: Aetna says its pharmacy benefits are administered by CVS Caremark. That's why both names may appear while the request moves.

Door 2 — the drug isn't on your list, so you need an exception

You can start this one yourself. Aetna publishes the member route:

On Aetna's published Standard Plan instructions, Aetna says it will contact you or your prescriber with a medical-exception decision within 24 hours of receiving the request.

Here's the exception rule people miss. Aetna lists two situations in which you or your prescriber can ask for a medical exception:

1. You have a health condition that may seriously jeopardize your life, health or ability to regain maximum function, or
2. You're undergoing a current course of treatment using a non-covered drug.

Number two is the quiet one. If you're already taking Foundayo and paying cash, that may fit one of Aetna's two published situations for requesting an exception.

It doesn't guarantee the answer. It means there is a published door to ask through.

The six questions that get you a real answer on the phone

Members give up on these calls because they don't know what to ask. Ask exactly this, in this order, and write down the answers:

1. Was the request received? What date?
2. Is anything missing?
3. Which policy number is being applied?
4. Is this being handled as a prior authorization or a formulary exception?
5. What's the reference number?
6. What's the decision deadline?

Get the rep's first name and the reference number every single time.

---

How long does Aetna Foundayo prior authorization take — and how long does approval last?

Aetna does not publish one standard Foundayo turnaround that fits every commercial plan and request type. Its published Standard Plan instructions say medical-exception decisions and expedited coverage decisions are made within 24 hours of receipt. A coverage-exception appeal can take up to 15 business days, with a second level of up to 15 more business days where the plan allows one. Under 6450-C, a first Foundayo approval for adult weight loss runs eight months and a continuation runs twelve.

Two clocks. People confuse them constantly.

Clock one: how fast do they answer?

The published 24-hour statements apply to a medical exception and an expedited decision. They do not prove that every ordinary Foundayo PA is decided in 24 hours.

Missing records can still trigger a request for more information or a denial. And a busy office can add days before Aetna even receives the request.

Which is exactly why the checklist above matters more than another vague promise about turnaround time.

Be careful with any page that promises one number here. There is no single published Foundayo turnaround that applies to every Aetna plan and request type, and we're not going to invent one. Use the deadline on your own notice, and use the six questions when there isn't one.

Clock two: how long does the approval last?

This one is published by pathway in 6450-C:

Worth noticing: Foundayo gets one of the longest first approvals in the policy. The other weight-loss pill on the list — Wegovy tablets — gets six months. Saxenda gets four. The hardest door to walk through also buys more time once you're inside.

And the quantity limit, with a small gift attached

Aetna's published limit for Foundayo is 30 tablets per 25 days, or 90 tablets per 75 days.

That looks like a typo. It isn't. Aetna explains that the 25-day window is used for a 30-day fill “to allow time for refill processing.”

In plain terms, the policy builds in roughly five days of processing room. That is not a promise that every pharmacy claim will pay exactly five days early. Your plan and claim status still control.

(For comparison, the policy uses a 21-day window for a 28-day injection fill, or roughly seven days of processing room. Different math, same idea.)

---

What does Aetna require to renew Foundayo?

Under 6450-C, a Foundayo continuation requires that you're 18 or older, that your baseline BMI was 35 or higher at the start of weight-loss drug therapy, that you've completed at least three months of Foundayo at a stable maintenance dose, and that you've lost at least 5% of your baseline body weight — or maintained that initial 5% loss. Aetna marks the weight result “documentation required.” A qualifying continuation is approved for twelve months.

Start the renewal file on day one of treatment. Not on month seven.

The 5% math, done for you

Take your starting weight and multiply by 0.95. That's the highest weight that still shows a 5% loss.

Two things people get wrong here, both worth money:

“Maintained” counts. The policy says lost at least 5% or continued to maintain the initial 5% loss. If you dropped 12 pounds in year one and held it, you still meet the weight-result test in year two. You don't have to keep losing forever.

The bar isn't the same for every drug. Saxenda's renewal test in the same policy is at least 16 weeks and 4%. Foundayo's is at least three months at a stable maintenance dose and 5%. Same document, different bars. If your doctor's office is working from Saxenda muscle memory, that's worth a gentle correction.

Your no-signup renewal worksheet

Copy these four lines into your notes or calendar:

• Starting weight: ______ lb
• Starting weight × 0.95: ______ lb — this is the 5% target
• Date you reached a stable maintenance dose: ______
• Authorization end date: ______

Set reminders for 90, 60 and 30 days before the authorization end date. That gives the office time to collect the current weight, fill history and follow-up notes.

---

Why do Aetna Foundayo requests get denied?

A Foundayo denial can come from one of three very different places: a documentation gap, an unmet policy criterion or a benefit exclusion. They can look similar on paper and require different responses. Read the exact denial wording before deciding whether to send a missing record, request an exception or follow the appeal steps in the letter.

The single most important distinction on this page

A prior authorization decides whether you meet the medical rules. It normally cannot create a benefit your plan contract doesn't include.

If your plan excluded weight-loss medications, a perfect 6450-C packet still loses. Not because it was weak. Because it answered a question nobody was asking.

Know which fight you're in before you spend three weeks on it.

Ask for the reason in writing

A written denial gives you the exact reason, the policy basis and the appeal instructions. Ask for it every time. Aetna also says you can see the review status in the member portal and will receive a determination letter.

For a denied coverage exception, Aetna says an appeal may take up to 15 business days. If your plan allows a second level, that may take up to 15 more. Follow the deadlines in your own denial letter. See the full Foundayo appeal steps →

---

What if your plan doesn't cover weight-loss drugs at all?

Some Aetna plans exclude weight-management medications as a category, and Aetna's own drug guide says a plan may not cover drugs used for weight loss. When the category is excluded, a standard prior authorization is the wrong tool, because a clinical approval normally cannot add a benefit the plan contract left out. The realistic paths are to ask about any contract-level exception, ask when the employer can change next year's benefit, or use cash pay.

We're going to be blunt here, because being nice about it wastes your time.

Three signs you're looking at an exclusion, not a criteria problem:

1. The denial letter uses the word excluded and names the category.
2. Wegovy, Zepbound, Saxenda and Foundayo all come back denied for the same category reason.
3. HR confirms the plan was purchased without obesity-medication coverage.

If that's you, stop sending the same PA. Two real paths remain:

Talk to HR about the contract and the next plan year. Ask when the benefit decision is made, who receives employee requests, and whether the plan has any written exception route. Foundayo's published self-pay price and oral form may change the conversation, but that self-pay price is not the price an employer plan would pay.

Pay cash in the meantime. Foundayo self-pay starts at $149 for a 30-day supply of the 0.8 mg dose. That's not nothing, but it gives you a concrete fallback price while you decide what to do.

### ▶ If your plan excludes weight-loss medication, this page is done helping you Don't spend another week sending the same form. See what Foundayo costs when you skip insurance, dose by dose. See Foundayo's cost without insurance →

---

Does any of this apply to Aetna Medicare?

Policy 6450-C does not control the Medicare GLP-1 Bridge. An Aetna Part D member prescribed Foundayo solely for weight management may use the Bridge only if the member is in a CMS-eligible Part D plan type and meets the clinical rules. The Bridge runs outside the Part D payment flow from July 1, 2026 through December 31, 2027. Humana, acting as CMS's central processor, handles the prior authorization — not Aetna.

Who qualifies for the Medicare GLP-1 Bridge?

The prescriber must attest that the drug is for weight management with ongoing structured nutrition and physical activity. The beneficiary must be at least 18 and meet one of these three doors at the start of GLP-1 therapy:

CMS also draws hard lines around who does not use the Bridge:

• A beneficiary with type 2 diabetes, moderate-to-severe sleep apnea or qualifying MASH is directed to the Part D route and is not eligible for the Bridge, even if the Bridge BMI criteria are met.
• A drug prescribed to reduce major cardiovascular events belongs in the Part D route, even if weight management is also a goal.
• CMS checks whether a beneficiary received one of the listed GLP-1 drugs through Part D in 2026. A person who did is not eligible for the Bridge in 2026.

Two people can both hold cards that say Aetna and get completely different instructions. That's not a mistake. That's the system.

One correction while we're here: several guides still say Foundayo isn't in the Bridge. CMS added it on April 6, 2026, days after FDA approval, and the program went live July 1.

First send the prescription to the pharmacy and have the pharmacy send the claim to the Bridge. A Part D denial is not required; the prescriber may direct the pharmacy to send the claim straight to the Bridge. Wait for the pharmacy to request prior authorization before sending the PA. The prescriber can respond through CoverMyMeds or fax 1-800-530-2404. Sending the PA before the Bridge receives the pharmacy claim can return “patient not found.” See the full Medicare GLP-1 Bridge tracker →

---

Should you use your own doctor, Ro, or LillyDirect?

Start with the prescriber you already have if that office is willing to handle the paperwork — they hold your baseline records, which are the hardest part of a 6450-C packet to recreate. A telehealth service makes sense when you need an online clinician or a separate cash-pay route. LillyDirect self-pay makes sense when your plan excludes the category or you don't want to wait on insurance.

Any compounded orforglipron sold as an alternative would not be FDA-approved Foundayo. Compounded drugs are not FDA-approved, and federal law limits routine compounding of products that are essentially copies of an available FDA-approved drug. This page compares FDA-approved Foundayo paths only.

Lilly's $299 purchase offer for 14.5 mg and 17.2 mg continues only when the next purchase is completed within 45 days of the prior delivery or receipt date. Prices, taxes, fees, eligibility and offer terms can change.

The honest problem with the option we get paid for

Ro's free GLP-1 insurance checker cannot check Foundayo. It reports coverage for the Ozempic pen, Wegovy pen and Zepbound pen. Ro says it cannot check insurance for the Foundayo pill, Wegovy pill or Zepbound KwikPen.

More importantly, Ro says only the Wegovy pen, Zepbound autoinjector pen and Ozempic are currently available for insurance coverage through its program. Foundayo is a cash-pay route on Ro, not an Aetna Foundayo PA route.

If you came here for someone to file the Aetna Foundayo paperwork, Ro is not the answer today.

We'd rather tell you that than have you click through and find out.

Here's why we still point some people there. Ro can provide an online clinical review and, if a clinician finds it appropriate, a cash-pay Foundayo prescription at pricing Ro says is matched to the manufacturer route. That can solve the visit and prescription problem while the Aetna question stays separate.

That's the trade. Faster online cash-pay access. Separate insurance work.

### ▶ If that fits your situation See Ro's current Foundayo pricing and check whether you qualify for a prescription. Check your Foundayo eligibility on Ro → (sponsored affiliate link, opens in a new tab) Foundayo is cash pay through Ro at the time of verification. The membership and medication are billed separately. A prescription and treatment eligibility are never guaranteed.

Want to pick your own clinician instead? Sesame Care is another telehealth route to a prescription for FDA-approved Foundayo if a licensed clinician finds it appropriate. Not sure Foundayo is even the right drug for you? That's a different question and we have a better tool for it: Find My GLP-1 Path.

---

What real Aetna members say about the wait

We don't fabricate testimonials, and we won't dress up strangers' posts as proof of anything. But the frustration in these two lines from r/WegovyWeightLoss is the exact feeling that sends people to this page, and it's worth naming:

“Mine has been processing for almost two weeks.” — source

“My insurance responded … saying a PA was not necessary.” — source

These are individual paperwork experiences. They are not evidence of typical Aetna timing, typical outcomes or what will happen to your request. We're including them because the confusion is real and you're not imagining it — and because the six questions above exist specifically to end that particular phone call.

---

Foundayo safety, briefly — because this isn't only a paperwork decision

Foundayo is FDA-approved for long-term weight management in adults with obesity, or adults with overweight plus at least one weight-related condition, when used with a reduced-calorie diet and increased physical activity. It carries a boxed warning about thyroid C-cell tumors and is contraindicated for people with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2. Whether it is appropriate for you is a decision for you and your prescriber.

The short version of what's on the label:

• Boxed warning — the FDA's most serious warning — about thyroid C-cell tumors
• Do not use with a personal or family history of medullary thyroid carcinoma, or with MEN2
• Do not use after a serious allergic reaction to orforglipron or another Foundayo ingredient
• Use with another GLP-1 receptor agonist is not recommended
• Common adverse reactions include nausea, constipation, diarrhea and vomiting
• Foundayo may cause fetal harm; the label says to stop it when pregnancy is recognized
• Start at 0.8 mg for at least 30 days, then 2.5 mg for at least 30 days, then 5.5 mg
• Higher steps — 9 mg, 14.5 mg and 17.2 mg — are optional based on response and tolerability, with at least 30 days at each step

That dosing ladder matters for your renewal, but not in the way many summaries say. Aetna asks for at least three months at a stable maintenance dose. It does not say you must reach the maximum 17.2 mg dose.

Read the full FDA prescribing information and Medication Guide before treatment. This brief section is not a substitute for the label or your prescriber's advice. For a plain-language breakdown, see Foundayo side effects, warning signs and cautions.

---

What we actually verified

We think you should be able to check us. Here's what each claim rests on and what it does not prove.

Verified, provider-stated and plan-specific facts

And what we could not verify: your plan. We can't see your contract, your employer's benefit choices, your copay or whether your specific plan uses policy 6450-C. Nobody writing a public page can. Anywhere you see a site state your exact Aetna copay for Foundayo without checking your plan, that number came from somewhere other than your contract.

We also corrected ourselves. In April 2026 we published that Foundayo did not appear in the Aetna drug guide we checked. That statement is no longer current. The August Standard Plan guide lists Foundayo as NPB, and three October 1 notices schedule a move to preferred. That's why the verification date on this page matters.

---

Frequently asked questions

Does Aetna require prior authorization for Foundayo?

On a plan that applies policy 6450-C and covers the weight-management drug benefit, Foundayo has prior-authorization criteria. Your exact plan can exclude the category or use a different policy. Check your logged-in Aetna drug search and ask which policy number applies.

What BMI does Aetna require for Foundayo?

Policy 6450-C requires a baseline BMI of 35 or higher for its adult weight-loss pathway. That's your BMI at the start of weight-loss drug therapy, not necessarily today's BMI. The FDA label does not print a BMI 35 rule; that number comes from Aetna's policy.

Does Aetna make you try Wegovy before Foundayo?

Policy 6450-C does not contain a Foundayo step-therapy rule. It does not ask you to fail Wegovy first. Your individual plan can use different rules, so check the plan's step-therapy list and ask the rep to name the policy being applied.

How long does an Aetna Foundayo approval last?

A first approval for adult weight loss runs eight months under 6450-C. A continuation runs twelve months. Set a reminder about 90 days before the end date so the renewal file is ready.

Does Aetna decide every Foundayo request within 24 hours?

No published source says every standard commercial Foundayo PA is decided within 24 hours. Aetna publishes a 24-hour response for a medical exception and for expedited coverage decisions. Use the deadline tied to your own request.

What does Aetna require to renew Foundayo?

At least three months of Foundayo at a stable maintenance dose, plus at least 5% of baseline body weight lost — or that initial 5% loss maintained. The baseline BMI of 35 or higher at the start of weight-loss drug therapy must still be documented.

What's Aetna's quantity limit for Foundayo?

30 tablets per 25 days, or 90 tablets per 75 days, under 6450-C. Aetna says the shorter window allows time for refill processing. It creates roughly five days of processing room, not a guarantee that every claim pays five days early.

I lost weight on Wegovy and I'm now under BMI 35. Am I out?

Not necessarily. Policy 6450-C says that when a patient is transitioning from another weight-loss drug, the reviewer should consider the baseline BMI at the start of any weight-loss drug therapy. Have your doctor send the original dated number and label the request as a transition.

Can I request the exception myself, without my doctor?

Aetna publishes a member route: call 1-855-582-2025, fax 1-855-330-1716, or mail Aetna PA at 1300 E. Campbell Rd., Richardson, TX 75081. Aetna lists two request situations: a condition that may seriously jeopardize life, health or the ability to regain maximum function, or a current course of treatment with a non-covered drug. Your prescriber still supplies the clinical records.

Is Foundayo preferred on Aetna's formulary?

On the August 1 Aetna Standard Plan guide, Foundayo is still NPB, or non-preferred brand. October 1, 2026 notices for three templates — Standard Plan, Advanced Control and Standard Control Formulary Choice — schedule a move to preferred. Check the notice and portal tied to your plan.

Does my Aetna Medicare plan use policy 6450-C for Foundayo?

Not for the Medicare GLP-1 Bridge. Eligible Part D members prescribed Foundayo solely for weight management use the CMS Bridge process, which has its own BMI and diagnosis rules. Humana processes the Bridge PA for CMS. Not every Aetna Medicare member qualifies.

Can Ro submit my Aetna Foundayo prior authorization?

Not through Ro's current Foundayo route. Ro says Foundayo is cash pay in its program and that only the Wegovy pen, Zepbound autoinjector pen and Ozempic are currently available for insurance coverage through Ro. Use your prescriber and Aetna for the Foundayo PA.

Can I use the Foundayo Savings Card after Aetna approves it?

Possibly, if you have eligible commercial drug insurance that covers Foundayo. Lilly currently says the card may lower a 30-day fill to as little as $25, subject to savings caps and full terms. Medicare, Medicaid and other government-program beneficiaries are excluded. The current card expires December 31, 2026.

Can I pay cash while I wait for a decision?

You can. Foundayo's published self-pay price starts at $149 for a 30-day supply of 0.8 mg. Money spent outside your plan may not count toward your deductible or out-of-pocket maximum. Confirm that with Aetna before assuming it will count or be reimbursed.

What if my employer excluded weight-loss drugs?

Then another standard PA normally won't help, no matter how good the file is. Confirm the exclusion with HR, ask whether the contract has any written exception, and ask when the next benefit decision is made. Cash pay is the other immediate path.

---

One last thing

If you take nothing else from this page, take these three:

1. Find out which of the three problems you have before you spend a week on the wrong one.
2. If your plan uses 6450-C, the number is 35, and it's your starting BMI — including the start of a prior weight-loss drug when you are transitioning.
3. October 1 may lower your cost on three Aetna templates. Check your portal, plan notice and renewal timing before assuming it applies.

If you're in the PA or exception row, you're not fighting a wall. You're working through published rules, and now you've read them.

### Still not sure which GLP-1 program is right for you? Take our free matching quiz → Independent guidance for choosing your GLP-1 path. About two minutes. No signup.

---

Related guides

• Aetna Wegovy prior authorization
• Aetna Zepbound prior authorization
• Medicare GLP-1 Bridge tracker
• Foundayo cost without insurance
• Who qualifies for Foundayo?
• How to appeal a Foundayo denial
• Foundayo side effects
• Foundayo vs. Zepbound
• Find My GLP-1 Path

Content is for informational purposes only and does not constitute medical advice. Coverage rules, prices and policies change. Confirm anything that affects your care or your money with Aetna, CMS when applicable, and your prescriber before acting.