Zepbound vs Foundayo (orforglipron)
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Side-by-side comparison based on SURMOUNT-1 and ATTAIN-1 phase 3 trial data plus May 2026 pricing.
Zepbound
Higher efficacytirzepatide (injection)
Peak weight loss22.5%
TrialSURMOUNT-1
Administrationinjection
FDA statusweight-loss
List price$1,059/mo
Foundayo (orforglipron)
orforglipron (tablet)
Peak weight loss14.7%
TrialATTAIN-1
Administrationoral
FDA statusweight-loss
List price$1,099/mo
Weight loss comparison (220 lbs starting weight)
% of body weight lost over 18 months, modeled from phase 3 trial data
Monthly cost by payment channel
| Channel | Zepbound | Foundayo (orforglipron) | Difference |
|---|---|---|---|
| Covered by insurance ($25–150 copay) | $88 | $63 | $25 (Foundayo (orforglipron) cheaper) |
| Manufacturer self-pay (LillyDirect / NovoCare) | $299 | $149 | $150 (Foundayo (orforglipron) cheaper) |
| Telehealth: brand name (Hims, Ro, Found) | $499 | - | - |
| Cash retail (full list price) | $1,059 | $1,099 | $40 (Zepbound cheaper) |
Zepbound pros and cons
Pros
- ✓ Highest efficacy of any FDA-approved GLP-1 (22.5% in SURMOUNT-1)
- ✓ Dual GLP-1/GIP mechanism
- ✓ LillyDirect self-pay vials starting around $349/mo for lower doses
- ✓ FDA-approved for chronic weight management
Cons
- ✗ List price still high ($1,059/mo)
- ✗ Insurance coverage varies more than for Wegovy
- ✗ GI side effects can be more pronounced at higher doses
- ✗ Periodic supply constraints during demand spikes
Foundayo (orforglipron) pros and cons
Pros
- ✓ Daily pill with NO food or water restrictions (advantage over oral Wegovy 25 mg)
- ✓ Non-peptide small molecule - easier manufacturing and scaling
- ✓ 14.7% average weight loss in ATTAIN-1
- ✓ LillyDirect self-pay starts at $149/mo for the lowest dose
- ✓ Medicare Part D coverage as low as $50/mo beginning July 1, 2026
Cons
- ✗ New molecule (April 2026 approval) - limited real-world safety data outside trials
- ✗ Daily adherence required
- ✗ Higher doses (14.5/17.2 mg) price up to $349/mo out of refill window
Common side effects
Zepbound
- • Nausea
- • Diarrhea
- • Constipation
- • Vomiting
- • Decreased appetite
Foundayo (orforglipron)
- • Nausea
- • Diarrhea
- • Vomiting
- • Constipation
Which should you choose: Zepbound or Foundayo (orforglipron)?
Choose Zepbound if: you want maximum weight loss (22.5% vs 14.7%); you prefer a weekly injection over a daily pill; cash-pay cost matters most to you.
Choose Foundayo (orforglipron) if: you prefer a daily pill over a weekly injection.
Final decisions should always be made with a licensed prescriber. This is educational content only.
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Where to actually buy Zepbound or Foundayo (orforglipron) (and the alternatives)
Manufacturer direct prices (LillyDirect, NovoCare) are usually cheapest. Updated May 2026.
| Drug | Insurance | Mfr direct | Telehealth (brand) | Telehealth (compd) | Cash retail | Get it |
|---|---|---|---|---|---|---|
| Wegovy 14.9% weight loss | $63 | $349 | $329 | $249 cheapest | $1,349 | Get → |
| Ozempic 11.6% weight loss | $63 | - | $399 | $199 cheapest | $998 | Get → |
| Wegovy (oral 25mg) 13.6% weight loss | $63 | $149 cheapest | $449 | - | $1,349 | Get → |
| Zepbound 22.5% weight loss | $88 | $299 cheapest | $499 | $299 cheapest | $1,059 | Get → |
| Mounjaro 20.9% weight loss | $88 | - | $499 | $299 cheapest | $1,069 | Get → |
| Saxenda 8.4% weight loss | $63 | - | $399 cheapest | - | $1,349 | Get → |
| Foundayo (orforglipron) 14.7% weight loss | $63 | $149 cheapest | - | - | $1,099 | Get → |
Some links are affiliate. We earn a commission at no cost to you. We never recommend a product based on commission. Disclaimer.
Medical disclaimer: This calculator provides estimates only based on phase 3 clinical trial data and publicly listed prices. It is not medical advice. Real-world weight loss varies significantly. Consult a licensed healthcare provider before starting any medication.
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