Foundayo vs Mounjaro: Which Is Right for You? See what real users say.
Foundayo (orforglipron) is a once-daily tablet that, under its UK licence, can be taken at any time of day without food or water restrictions. Mounjaro (tirzepatide) is a once-weekly injection. Since the tablet reached UK pharmacies on private prescription this August, a new kind of thread has appeared on public forums: people who know the injection well, writing about what it is like to move to the pill, or back again.
What follows draws on those threads. They are personal accounts, not evidence of how often anything happens or why, and they come mostly from UK forums, many from people who had spent months or years on Mounjaro before trying Foundayo.
They do not hand down a verdict. What they describe is a set of trade-offs that each person weighs differently: cost, convenience, what they hoped the medicine would do, and what they were afraid of losing.
The Appeal of a Daily Tablet
The reasons for looking at a tablet are usually practical before they are anything else. Cost comes up most often, and people who have already lost a good deal of weight tend to describe the swap as a bargain struck with themselves: a slower pace in return for something they can keep paying for.
"I know the weight loss is likely to be slower than it was with MJ, but I’m genuinely okay with that. The difference in cost makes a slower journey much more manageable for me — and I’d rather take the scenic route than bankrupt myself getting there!"
– Acceptable_Cow6658
Convenience can be just as decisive, and sometimes it comes down to one logistical problem that a weekly pen cannot solve.
"I’m lucky enough to be going on a post-retirement trip this autumn - to Greece, Japan and Malaysia. The chances of me being able to keep a mounjaro pen cool for nearly 5 weeks are zero. […]"
– CheeryGoldHiker
Neither person promises that the tablet will do what the injection did, and both say so. What they are weighing is how much to give up, and the sums do not always come out as people expect once they sit down to compare prices line by line.
"[…] The cheapest online price for the Foundayo equivalent after discounts looks to be about £150. Think I’ll stick with weekly injections for now and see where the price settles. […]"
– JewelerCold1392
Coming Down From a High Dose
The most anxious posts come from people who have spent a long time on the top Mounjaro strengths and are wondering how a tablet will feel by comparison. In a thread started by exactly that question, the first reply was almost anticlimactic.
"I was on 15mg maintaining and switched to 9mg foundayo. Zero issues whatsoever other than day one when my stomach was gurgling quite merrily to itself."
– Final_Flounder9849
A day later, in the same thread, another person described the opposite.
"I switched from 15mg Mounjaro to Foundayo 9mg a month ago. I just reordered Mounjaro yesterday. I HATE Foundayo. My depression & anxiety are back with a vengeance, my weight is up, I am having trouble sleeping and concentrating, and I am suffering with water retention. I can’t wait to get that jab back."
– Aurorafaery
Mumsnet carries a similar story told in terms of hunger rather than mood, two weeks in and with the scales already moving the wrong way.
"I've been taking foundayo for around two weeks and oh my goodness its like I'm on nothing. My hunger and food noise is back with a vengeance and I've gained 5 lbs. […]"
– ILoveaSunflower
Replies to that post split between those who thought the pharmacy should have begun at a higher strength and those who thought a tablet was never going to match fifteen milligrams of the injection. The person asking was left with the same question they began with.
Side Effects, Measured Against What They Knew
People who have used both medicines have a personal baseline, and their comparisons tend to be specific. One person who had lost a great deal on Mounjaro and then stalled for a year kept a week-by-week diary of starting Foundayo, and the first entry was dominated by something they had not expected.
"The nausea has honestly been the biggest surprise. It's been awful and almost constantly present throughout the week, and much worse than I experienced on Mounjaro. With Mounjaro, I generally only experienced nausea for around 2 days when titrating up a dose, whereas this has been pretty much daily/non-stop despite being on the starting dose. […]"
– EducationalTune870
For others the comparison runs the other way. A post from a different forum credits the tablet with a better result than either of the injections its author had tried, while still noting a downside.
"Ive been taking for nearly weeks. Lost 5llbs already! Hardly lost anything on wegovy and with munjaro loss was very slow for me. I have no food noise. Feel a bit bloated. Have loads of energy […]"
– Dinkiedoo
Mood has come up on both sides. This account is close to a mirror image of the earlier one, with the injection as the medicine that did not agree and the tablet as the hoped-for relief.
"Hi I started Foundayo just over a week ago and am UK based. I tried Mounjaro for six months but never got on with it and didn’t lose any weight. It impacted my mood quite badly so hoping that Foundayo’s gentler action is more of a good fit for me. Certainly so far it’s going ok."
– jiljen
The Number Everyone Quotes
One comparison travels through almost every thread: that the strongest Foundayo tablet sits somewhere near the lower end of the Mounjaro range. It is usually repeated second-hand, and at least one person points out that no official conversion exists. Whatever its status, it shapes how people plan.
"Following as part of me is interested in trying it as it seems so much cheaper than MJ and I'm only 13 pounds away from goal now so may be interested in foundayo to maintain. However apparently the highest dose of it is only equivalent to 5mg of MJ or so I've heard and I'm currently on 15mg of MJ so don't know if foundayo would work for me"
– Fatmumslim01
Some respond by building the expected regain into their plans in advance.
"[…] My plan now is to drop an extra 5 kgs to give me a bigger tolerance for the anticipated regain on Foundayo. […] I would really like to be on oral medication rather than an injection, so I want it to work for me. […]"
– LeastTemperature23
Where nobody sounds certain is the starting point itself. The question gets asked in a way that suggests the people answering do not have a settled reply either.
"Has anyone had a prescriber suggest a dose to start with if previously on MJ? I'd be interested to know what dose the pharmacies suggest to start on after being on some higher mj doses"
– tescovaluebread
Underneath most of these questions sits one that is less about numbers: whether the move can be undone.
Keeping a Way Back
Many of the people planning a switch attach a condition to it, and the condition is about the return journey.
"The cost will be driver but I'll probably only consider swapping if my pharmacy will allow swapping back if it's not effective."
– PinkandTwinkly
That condition is not always one that can be taken for granted, as another person found out after a few months of savings that no longer looked so large.
"After 8 months on 15mg Mounjaro I decided to order Foundayo to save some cash, […] Since then prices have dropped significantly and I’m not hearing great things about Foundayo so thought I’d ask the question about switching back, and they’ve confirmed I’d have to drop to 2.5mg even after just 2 weeks off Mounjaro. Really regretting the decision to switch […]"
– SuperbDingo66
A third has already made the trip back, and the account is short on caveats.
"[…] I recently decided to come off Foundayo for a while, and honestly, after this experience, I don’t think I’d ever put myself through it again. Two days ago, I started Mounjaro, and I genuinely can’t believe how much better I feel already. […]"
– Early_Blueberry9229
None of these accounts can say whether the difference came from the medicine, the strength, the timing or the person taking it. They are certain only of how it felt.
What Does Medino's Pharmacist Think?
"What stands out across these accounts is how much of the comparison depends on where each person was starting from: what they hoped to protect, what they were willing to pay, and what they remembered feeling on the other medicine. Two people can describe the same switch and sound as though they took different drugs, which is probably why the question of which is better keeps being answered differently."
– Alessandro Grenci, Pharmacist at Medino
Two Medicines, Many Answers
Read side by side, these threads do not name a winner. They describe people moving in both directions between the same two medicines, for reasons that were sometimes financial, sometimes physical and often both.
What they share is the habit of measuring one against the other, in kilograms, in pounds and in how an ordinary Tuesday felt, and of leaving room to change their minds.
