Foundayo vs Wegovy Pill: Oral GLP-1 Scripts Hit New Highs
TL;DR: US oral GLP-1 prescriptions hit record highs (4 Sep 2026) — Wegovy pill ~181k weekly scripts, Lilly’s Foundayo ~44k, per IQVIA data.
What Did the Latest Oral GLP-1 Prescription Data Show?
On 4 September 2026, Fierce Pharma's recurring Oral GLP-1 Tracker reported the newest weekly US prescription figures for the two licensed oral GLP-1 tablets on the market, sourced from IQVIA retail-pharmacy data.[1] Novo Nordisk's Wegovy pill (oral semaglutide) recorded approximately 181,000 weekly prescriptions, up 3% week-on-week, while Eli Lilly's Foundayo (orforglipron) recorded approximately 44,000 weekly prescriptions, up 8%.[1] Both figures were the highest either drug had reached since launch.[1]
Fierce Pharma's tracker aggregates IQVIA's weekly US retail and mail-order pharmacy data for both approved oral GLP-1 tablets. As of the week ending around 4 September 2026, Wegovy pill held roughly a 4:1 lead in weekly volume over Foundayo, though Foundayo's week-on-week growth rate outpaced Wegovy pill's, a pattern the tracker has recorded consistently since Foundayo's spring launch.[1]
Source: Fierce Pharma, "The Oral GLP-1 Tracker: Novo's Wegovy pill, Lilly's Foundayo grow scripts," 4 Sep 2026. fiercepharma.com
Neither number represents a clinical result or a regulatory action — both are commercial dispensing metrics for medicines that were already approved earlier in 2026. They are reported here as third-party market data on the licensed pharmaceutical GLP-1 class, distinct from the investigational, injectable research peptides covered elsewhere on this site.
How Did Foundayo and Wegovy Pill Get Here?
Novo Nordisk's Wegovy pill (oral semaglutide 25mg) was FDA-approved in December 2025 on the strength of the Phase 3 OASIS 4 trial, and launched in the US in early January 2026 — giving it roughly a three-month first-mover advantage as the first oral GLP-1 approved for chronic weight management.[2] Eli Lilly's Foundayo (orforglipron), a non-peptide small molecule, followed with FDA approval on 1 April 2026, becoming available through LillyDirect from 6 April and through broader US retail pharmacies and telehealth providers shortly after.[3] Our MHRA approval guide covers Foundayo's later, separate 10 August 2026 UK authorisation.
Growth since launch has been steady rather than explosive for Foundayo. By early August 2026, roughly 20 weeks after its US debut, weekly scripts had just crossed 40,000 (40,862), with analysts at the time floating full-year 2026 US prescription volumes above five million on an annualised basis.[4] The move to ~44,000 by early September continues that trajectory, though Foundayo still trails Wegovy pill by a wide margin in absolute weekly volume.
| Metric | Wegovy pill (semaglutide) | Foundayo (orforglipron) |
|---|---|---|
| Maker | Novo Nordisk | Eli Lilly |
| FDA approval | December 2025 | 1 April 2026 |
| US launch | Early January 2026 | 6 April 2026 |
| Chemistry | Peptide, needs absorption enhancer + fasting rules | Non-peptide small molecule, no food/water restriction |
| Weekly scripts (~4 Sep 2026) | ~181,000 (+3% w/w) | ~44,000 (+8% w/w) |
Why Does the Oral GLP-1 Race Matter for Incretin Research?
Both tablets target the GLP-1 receptor alone, the same pathway that anchors the single-, dual- and triple-agonist peptide research landscape tracked on this site. Their commercial trajectories are a useful, independently reported signal of how quickly the licensed incretin market is scaling: two competing oral formats, approved four months apart, both still climbing toward their highest weekly volumes nine and five months after launch respectively.[1] That sustained commercial demand is part of why receptor-agonism research — including in in vitro work on GLP-1, GIP and glucagon receptor pathways — has continued to attract investment and publication volume through 2026, as covered in our 2026 peptide research landscape overview.
It is worth being precise about what this data does and does not represent. Prescription counts describe dispensing volume for approved medicines under physician prescription and pharmacy fulfilment — they say nothing about efficacy, safety comparisons, or research applications, and they are not a proxy for research-grade compound demand. Retatrutide, by contrast, has no oral formulation, no FDA or MHRA approval, and remains confined to Eli Lilly's investigational TRIUMPH Phase 3 programme, as detailed in our retatrutide approval timeline.
Does This Affect Retatrutide or UK Research-Reagent Supply?
No. This is US retail-pharmacy prescription-volume data for two branded, licensed medicines, reported by a trade press outlet and sourced from a commercial data provider (IQVIA). It has no bearing on the separate Human Medicines Regulations 2012 framework under which unlicensed compounds are lawfully supplied for in vitro research use in the UK. Retatrutide's own regulatory position is unchanged: it remains an investigational, injectable, triple-receptor peptide with no marketing authorisation of any kind, tracked in our retatrutide research overview.
What this data does confirm is that the licensed oral incretin segment — now including oral Wegovy and Foundayo in the US, plus Foundayo's separate UK approval — continues to expand in parallel with, and entirely independently of, the investigational research-peptide pipeline that Velox Peptides' catalogue supports.
Velox Peptides does not stock orforglipron (Foundayo) or semaglutide (Wegovy). These are licensed prescription medicines discussed here for research-news context only. This compound is supplied as a research reagent only, has not been evaluated by the MHRA or FDA for use in our products, and is not for human or veterinary use. See our Research Use Policy and MHRA Statement.
References
- Fierce Pharma. The Oral GLP-1 Tracker: Novo's Wegovy pill, Lilly's Foundayo grow scripts. 4 September 2026. fiercepharma.com
- Novo Nordisk. Wegovy® pill FDA approval, company announcement. December 2025. novonordisk.com
- Eli Lilly and Company. FDA approves Lilly's Foundayo™ (orforglipron), the only GLP-1 pill for weight loss that can be taken any time of day without food or water restrictions. 1 April 2026. investor.lilly.com
- Fierce Pharma. Lilly's obesity pill Foundayo gains early blockbuster forecast as analysts float 5M+ prescriptions in 2026. August 2026. fiercepharma.com
- See Velox coverage: Retatrutide FDA & MHRA Approval Timeline, tracking the separate, unlicensed, investigational status of retatrutide.
Frequently Asked Questions
What did the latest oral GLP-1 prescription data show?
Fierce Pharma's Oral GLP-1 Tracker, citing IQVIA US retail-pharmacy data as of 4 September 2026, recorded roughly 181,000 weekly prescriptions for Novo Nordisk's Wegovy pill (up 3% week-on-week) and roughly 44,000 weekly prescriptions for Eli Lilly's Foundayo (orforglipron), up 8%. Both figures were the highest weekly totals either drug had reached since launch.
How many prescriptions has Foundayo reached since its FDA approval?
Foundayo was FDA-approved on 1 April 2026 and became available via LillyDirect from 6 April 2026, followed by broader US retail-pharmacy and telehealth availability. By early August 2026, roughly 20 weeks post-launch, weekly scripts had crossed 40,000 (40,862), and by 4 September 2026 they had reached approximately 44,000, an 8% week-on-week increase and the drug's highest weekly total to date.
Is Wegovy pill still ahead of Foundayo in the US market?
Yes. Novo Nordisk's Wegovy pill launched in the US in early January 2026, roughly three months before Foundayo, and held a first-mover advantage with an established Wegovy brand. As of 4 September 2026 it recorded about 181,000 weekly prescriptions versus Foundayo's approximately 44,000, though Foundayo's week-on-week growth rate (+8%) outpaced Wegovy pill's (+3%), narrowing the gap slightly.
Does this prescription data affect UK research-reagent supply of retatrutide?
No. This is US retail-pharmacy prescription-volume data for two already-licensed oral medicines, sourced from IQVIA and reported by Fierce Pharma. It has no bearing on the UK's Human Medicines Regulations 2012 framework under which unlicensed compounds are lawfully supplied as in vitro research reagents. Retatrutide remains a separate, investigational, injectable triple-receptor peptide with no marketing authorisation anywhere; Velox Peptides supplies it strictly as an HPLC-verified research reagent, not a medicine.