Does Express Scripts Cover Zepbound? Insurance Guide 2026

Bold opening If you’re considering Zepbound (tirzepatide) for diabetes or weight loss, understanding your insurance coverage is crucial. Express Scripts, one of the largest pharmacy benefit managers (PBMs) in the U.S., plays a key role in determining whether Zepbound is covered under your plan. This guide explores Express Scripts’ policies on Zepbound, costs, prior authorization requirements, and steps to take if coverage is denied. With Zepbound gaining popularity for its dual benefits in glucose control and weight management, knowing how to navigate Express Scripts can save you time and money.

Does Express Scripts Cover Zepbound for Diabetes?

Express Scripts generally covers Zepbound for type 2 diabetes under most commercial insurance plans, but coverage depends on your specific policy. Zepbound, a dual GIP/GLP-1 receptor agonist, was FDA-approved in 2022 for improving glycemic control in adults with type 2 diabetes. Clinical trials, such as the SURPASS program, demonstrated that Zepbound significantly lowers HbA1c levels—often more effectively than other GLP-1 agonists like semaglutide (Ozempic).

However, Express Scripts may classify Zepbound as a non-preferred or tiered medication, meaning you could face higher copays or prior authorization requirements. Some plans may require step therapy, where you must try and fail on metformin or other first-line treatments before Zepbound is approved. If your plan includes Zepbound on its formulary, you’ll likely pay a standard copay, but if it’s excluded, you may need to appeal or explore patient assistance programs.

Does Express Scripts Cover Zepbound for Weight Loss?

Zepbound received FDA approval for chronic weight management in November 2023, but Express Scripts coverage for weight loss varies widely. Since Zepbound is the same drug as Mounjaro (just branded differently for obesity), some plans may cover it under weight loss benefits if you meet specific criteria, such as a BMI of 30+ or 27+ with weight-related comorbidities (e.g., hypertension, sleep apnea).

However, Express Scripts often categorizes weight-loss medications as non-essential or lifestyle drugs, leading to denials. Some employer-sponsored plans exclude obesity treatments entirely, while others may cover Zepbound but require prior authorization. If your plan does cover it, you may still face high out-of-pocket costs unless you qualify for manufacturer savings programs. Always check your Express Scripts formulary or contact customer service to confirm eligibility.

How Much Does Zepbound Cost With Express Scripts?

The cost of Zepbound with Express Scripts depends on your insurance plan’s formulary tier, copay structure, and whether prior authorization is approved. Without insurance, Zepbound retails for $1,059.87 per month (as of 2026), but Express Scripts negotiates discounts, potentially lowering your out-of-pocket expense.

If Zepbound is on your plan’s preferred tier, you might pay a $25–$50 copay per month. However, if it’s classified as a non-preferred brand-name drug, your copay could range from $100–$300+. Some Express Scripts plans may require coinsurance (e.g., 20–30% of the drug’s cost), which could mean paying $200–$400+ monthly until you hit your deductible.

For those without coverage, Eli Lilly’s Zepbound savings card can reduce costs to $25 for a 1- to 3-month prescription (for eligible patients). Always verify your Express Scripts benefits to estimate your exact cost.

Zepbound Prior Authorization for Express Scripts

Express Scripts typically requires prior authorization (PA) for Zepbound, especially for weight loss. PA ensures the medication is medically necessary and cost-effective for your condition. For diabetes, you’ll likely need to provide:

• Proof of type 2 diabetes diagnosis
• Documentation of failed trials on metformin or other GLP-1 agonists
• Recent HbA1c levels (usually >7%)

For weight loss, Express Scripts may require:

• BMI ≥30 or ≥27 with comorbidities (e.g., hypertension, dyslipidemia)
• Evidence of participation in a supervised diet/exercise program for 3–6 months
• Documentation of failed weight loss on other medications (e.g., phentermine, Wegovy)

Your prescriber must submit a PA request to Express Scripts, which usually takes 3–10 business days for approval. If denied, you can appeal with additional clinical evidence, such as records of weight-related complications.

How to Get Express Scripts to Cover Zepbound

To maximize your chances of Express Scripts covering Zepbound, follow these steps:

1. Check Your Formulary – Log in to your Express Scripts account or call customer service to confirm if Zepbound is covered under your plan.
2. Obtain a Prescription – Your doctor must prescribe Zepbound for an FDA-approved indication (diabetes or obesity). Off-label use (e.g., weight loss without meeting BMI criteria) is rarely covered.
3. Submit Prior Authorization – Work with your provider to submit the required clinical documentation (e.g., lab results, failed therapies).
4. Explore Patient Assistance – If Express Scripts denies coverage, apply for Eli Lilly’s savings program, which offers $25 copays for eligible patients.
5. Appeal if Denied – If initially rejected, request a peer-to-peer review or submit an appeal with additional medical justification.

Proactively engaging with your insurer and prescriber improves approval odds.

What to Do If Express Scripts Denies Zepbound

If Express Scripts denies Zepbound, don’t panic—you have options:

1. Request a Reconsideration – Ask your doctor to submit an appeal letter with additional clinical evidence (e.g., records of failed therapies, comorbidities).
2. Peer-to-Peer Review – Your prescriber can discuss your case directly with an Express Scripts medical director to overturn the denial.
3. External Review – If internal appeals fail, you can request an independent external review through your state’s insurance department.
4. Manufacturer Assistance – Eli Lilly’s Zepbound savings card may reduce costs to $25/month for eligible patients, even without insurance.
5. Alternative Medications – If Zepbound remains uncovered, ask your doctor about Wegovy (semaglutide) or Saxenda (liraglutide), which may have better Express Scripts coverage.

Persistence and thorough documentation are key to overturning denials.

Express Scripts Alternatives If Zepbound Is Not Covered

If Express Scripts refuses to cover Zepbound, consider these alternatives:

1. Other GLP-1 Agonists – Wegovy (semaglutide) and Saxenda (liraglutide) are FDA-approved for weight loss and may have better Express Scripts coverage. Ozempic (semaglutide) is another option for diabetes.
2. Phentermine/Topiramate (Qsymia) – A non-GLP-1 weight-loss medication that may be covered under some Express Scripts plans.
3. Bupropion/Naltrexone (Contrave) – Another weight-loss drug that could be an alternative if Zepbound is denied.
4. Patient Assistance Programs – Eli Lilly’s Zepbound savings card or Lilly Cares Foundation may provide financial support.
5. Switch Insurance Plans – During open enrollment, compare plans to find one with better Zepbound coverage.

Always consult your doctor before switching medications.

Frequently Asked Questions

Does Express Scripts cover Zepbound for weight loss?

Express Scripts may cover Zepbound for weight loss if you meet BMI criteria (≥30 or ≥27 with comorbidities) and have prior authorization. However, many plans exclude obesity medications, so check your formulary or appeal if denied.

How much is the Zepbound copay with Express Scripts?

Copays vary by plan. If Zepbound is on a preferred tier, you might pay $25–$50. Non-preferred tiers could cost $100–$300+, and coinsurance may apply until you meet your deductible.

Can I appeal if Express Scripts denies Zepbound?

Yes. You can appeal by submitting additional clinical evidence, requesting a peer-to-peer review, or pursuing an external review through your state’s insurance department.

Disclaimer from HealthLeague Medical Board This article provides general information and should not replace professional medical or insurance advice. Coverage policies vary by plan, and Express Scripts’ formulary may change. Always consult your insurer, doctor, or pharmacist for personalized guidance on Zepbound coverage.