Does insurance cover Zepbound?

Most commercial insurance plans cover Zepbound with prior authorization for adults with BMI ≥30 (or ≥27 + a weight-related comorbidity). Medicare Part D excludes anti-obesity drugs by federal law, so Medicare patients pay cash unless they qualify for Lilly Cares.

Can I still get compounded GLP-1 in 2026?

For semaglutide: no — FDA declared the shortage resolved February 21, 2025 and 503A compounding is no longer broadly permitted. For tirzepatide: shortage resolved October 2024 (re-affirmed December 2024), with a wind-down enforcement window that ended in 2025. Some clinics still market "compounded" formulations with added ingredients (B12, glycine) as personalized prescriptions; the legal status is contested.

Can I switch from Wegovy to Zepbound?

Yes, and many patients do — SURMOUNT-5 (NEJM 2025) showed tirzepatide produced 20% mean weight loss vs 14% for semaglutide. Switching is usually done with a 1-week washout, starting Zepbound at 2.5 mg regardless of prior Wegovy dose.

How do I get prior authorization for Wegovy or Zepbound approved?

Approval rates vary by insurer from 30-70%. The highest-yield steps: documented BMI ≥30 (or ≥27 with a comorbidity), at least one documented diet/exercise attempt, baseline labs (A1c, lipids), prescriber notes citing FDA indication, and same-day appeal of denials with the carrier-specific reason. See /insurance-appeal/[carrier]/[drug] for templates.

Express Scripts (PBM) appeal guide

Express Scripts (PBM) Zepbound coverage appeal

Express Scripts (PBM) uses specific clinical-policy criteria for Zepbound. Most denials come from undocumented BMI history or missing step-therapy notes. Here is how to address both.

Express Scripts (PBM) prior authorization criteria for Zepbound

PA criteria set by sponsoring plan, not Express Scripts directly
Standard: BMI ≥30 + lifestyle documentation

Express Scripts (PBM) Zepbound policy bulletin

Step-by-step appeal flow

1
Pull your carrier policy bulletin
Express Scripts (PBM) publishes its Zepbound coverage criteria. Read it first — every successful appeal cites it back to the reviewer.
2
Document your medical necessity
PA criteria set by sponsoring plan, not Express Scripts directly Standard: BMI ≥30 + lifestyle documentation
3
Have your prescriber submit the PA
Most Express Scripts (PBM) PAs go through CoverMyMeds or the carrier portal. Your prescriber attaches BMI history, comorbidities (with ICD-10 codes), lifestyle program participation, and prior weight-loss attempts.
4
If denied — file the appeal within 60 days
Express Scripts is the pharmacy benefit manager — the underlying plan's PA criteria apply. Check the plan's coverage document; Express Scripts processes the appeal but doesn't set the criteria.
5
Submit external review if internal appeals fail
After two internal appeals, you can request external review through your state insurance commissioner. ERISA plans go through the federal external-review process.

Letter template

Customizable Express Scripts (PBM) appeal letter

We provide a generic medical-necessity letter generator. Customize with the Express Scripts (PBM)-specific framing above for highest first-pass success.

Generate appeal letter

Common questions readers ask

Does insurance cover Zepbound?: Most commercial insurance plans cover Zepbound with prior authorization for adults with BMI ≥30 (or ≥27 + a weight-related comorbidity). Medicare Part D excludes anti-obesity drugs by federal law, so Medicare patients pay cash unless they qualify for Lilly Cares.
Can I still get compounded GLP-1 in 2026?: For semaglutide: no — FDA declared the shortage resolved February 21, 2025 and 503A compounding is no longer broadly permitted. For tirzepatide: shortage resolved October 2024 (re-affirmed December 2024), with a wind-down enforcement window that ended in 2025. Some clinics still market "compounded" formulations with added ingredients (B12, glycine) as personalized prescriptions; the legal status is contested.
Can I switch from Wegovy to Zepbound?: Yes, and many patients do — SURMOUNT-5 (NEJM 2025) showed tirzepatide produced 20% mean weight loss vs 14% for semaglutide. Switching is usually done with a 1-week washout, starting Zepbound at 2.5 mg regardless of prior Wegovy dose.
How do I get prior authorization for Wegovy or Zepbound approved?: Approval rates vary by insurer from 30-70%. The highest-yield steps: documented BMI ≥30 (or ≥27 with a comorbidity), at least one documented diet/exercise attempt, baseline labs (A1c, lipids), prescriber notes citing FDA indication, and same-day appeal of denials with the carrier-specific reason. See /insurance-appeal/[carrier]/[drug] for templates.

Editorial information based on published Express Scripts (PBM) coverage policies as of 2026. Your specific plan benefits may differ — confirm with your insurance card’s member services number. Not legal advice.