If you’ve been injecting Wegovy every week, you’ve probably noticed the headlines. In August 2026, the MHRA approved Foundayo, Eli Lilly’s daily weight loss tablet, just two months after Novo Nordisk’s own Wegovy pill reached the UK.
For the first time, people on a weekly shot have a realistic, rival alternative they can swallow. That raises some obvious questions. Is a pill as good as the injection you’re already on? Will you lose ground if you switch? And is it worth changing something that’s working?
Here’s what Foundayo’s arrival really means if you’re on Wegovy today.
Shot vs pill: what actually changes
The Wegovy injection and Foundayo both act on the GLP1 receptor, the hormone pathway that dampens appetite and helps you feel full sooner. The similarity mostly ends there.
| Wegovy injection | Foundayo | |
|---|---|---|
| Maker | Novo Nordisk | Eli Lilly |
| Active ingredient | Semaglutide | Orforglipron |
| How often | Once a week | Once a day |
| How you take it | Pen injection under the skin | Tablet swallowed at any time, no food or water rules |
| Average weight loss in trials | 14.9% at 2.4mg (68 weeks) | 11.2% at 36mg (72 weeks) |
The biggest practical shift is from one weekly moment to a daily habit. Some people find a once a week pen easier to remember. Others would happily take a tablet every day to never see a needle again.
It’s also worth knowing that Foundayo isn’t a tablet version of Wegovy. It’s a different medicine from a different company, so moving across is a genuine change of treatment rather than a change of format.
Will you lose ground if you switch?
The early evidence is reassuring. Lilly designed a trial specifically for people coming off weekly injections, called ATTAIN MAINTAIN.
Participants had already spent 72 weeks on the highest tolerated dose of Wegovy or tirzepatide (sold as Mounjaro in the UK). Those who had reached a weight plateau were then switched to Foundayo or a placebo and followed for a year.
People moving from Wegovy to Foundayo held on to almost all their progress. On average, their weight went from about 95kg at the switch to 95.9kg a year later, a difference of just 0.9kg. The contrast with placebo was stark: at 24 weeks, the placebo group had already regained around 9.4kg, while the Foundayo group had barely moved.
Two caveats matter. This trial looked at keeping weight off, not losing more, and Foundayo’s average loss from scratch is a little lower than the Wegovy injection’s. For more detail on what the tablet achieves at each dose, see our breakdown of Foundayo weight loss results.
Who might benefit from switching?
Foundayo could be a good fit if:
- you’ve reached your goal weight and mainly want to keep it off
- injections cause you real anxiety, bruising or discomfort
- you travel often and find carrying and refrigerating pens a hassle
- you’d rather take a tablet with your other daily medicines than remember a weekly jab
Staying on the Wegovy injection may make more sense if:
- you still have a significant amount of weight to lose, since the injection has the stronger average result
- you’re doing well and tolerating it comfortably
- a once a week routine genuinely suits your life better than a daily one
There’s no prize for switching just because something new has arrived. If your current treatment is working and you’re happy with it, that counts for a lot.
How switching works in practice
Never make the move on your own. Foundayo and Wegovy should not be taken together, and a prescriber needs to decide when to stop the injection and which Foundayo dose to start on.
In ATTAIN MAINTAIN, participants switched directly from their top tolerated injection dose onto oral Foundayo. Discontinuation because of side effects was low, at 4.8% among those moving from Wegovy, compared with 7.6% in the matching placebo group.
Expect the usual GLP1 side effects to feel familiar: nausea, diarrhoea, constipation and indigestion, most often when a dose changes. Because Foundayo has no food or water rules, you can take it whenever suits you, which many people find easier than timing around a weekly injection day.
Your clinician should also review your weight, other medicines and medical history before you switch, just as they did when you started Wegovy.
Cost and access in the UK
Foundayo is licensed for adults with a BMI of 30 or above, or 27 to 30 with at least one weight related condition, so most people already prescribed Wegovy for weight loss will meet the criteria. It isn’t on the NHS yet. NICE guidance is due on 18 November 2026, which leaves private prescription as the route for now.
Lilly has said Foundayo’s private UK price should come in below Mounjaro’s, which could make the tablet a cheaper way to maintain your results long term. You can compare current Daily Weight Loss Tablets packages, including both Foundayo and the Wegovy pill.
And if you decide the shot is still right for you, nothing is lost. Weekly Mounjaro and Wegovy injections remain the most powerful options for many people, especially those with more weight to lose.
Frequently asked questions
Can I switch straight from Wegovy injections to Foundayo?
In Lilly’s switch trial, people moved directly from their Wegovy dose onto Foundayo. In real life, your prescriber will decide the timing and starting dose for you.
Will I regain weight after switching?
In ATTAIN MAINTAIN, people switching from Wegovy kept off almost all their weight over a year, regaining just 0.9kg on average. Individual results vary.
Is Foundayo as strong as the Wegovy injection?
Not quite for initial weight loss. The Wegovy 2.4mg injection averaged 14.9% in its main trial, while Foundayo’s top dose averaged 11.2%.
Can I take Foundayo and Wegovy together?
No. They shouldn’t be combined with each other or with any other GLP1 medicine.
Should I switch to the Wegovy pill instead of Foundayo?
It’s an option. The Wegovy pill uses the same semaglutide you’re used to, but it must be taken on an empty stomach with a 30 minute wait before eating. Foundayo has no such rules.
Can I go back to injections if the pill doesn’t suit me?
Yes. Switching back is possible under medical supervision, and your clinician can help you choose the best option.
The bottom line
Foundayo’s arrival doesn’t make the Wegovy injection obsolete. It gives you a choice. If you still have a long way to go, the shot remains the stronger tool. If you’ve done the hard work and want a simpler, needle free way to protect your results, the evidence so far suggests a switch to Foundayo can hold your progress steady.
The best decision is a personal one. Speak to the clinical team at Weight Medics to review your progress, your routine and your goals before changing anything.
