Good news: your Foundayo tablets are on their way! While you're waiting for them to arrive, this guide will help you feel prepared to hit the ground running from day one.
We’ll walk you through everything you need to know, from checking your order to taking your first dose and building a routine that works for you.
Three key takeaways
Take your Foundayo once a day. It can be taken any time of day, with or without food, so you’re free to pick a slot that works around you lifestyle.
Building a consistent daily routine is one of the best things you can do to get the most out of your weight loss treatment.
Your dose increases gradually over time, and your prescriber will guide you through each step.
Checking your order
When your order arrives, take a moment to check that everything looks right before you get started. Unlike some weight loss treatments, pills don’t require cold-chain delivery or refrigeration, so there's no need to worry about storage on arrival.
That said, it's still important to check:
your box is sealed and hasn't been opened or tampered with
you have the correct dose as prescribed
the expiry date is valid
the packaging matches what you'd expect from a prescription medication
If anything looks off, don't take the medication. Get in touch with your prescriber or our team straight away, and we'll help you sort it out.
Storing your treatment
Foundayo is easy to store. Just keep them in a dry place, away from direct sunlight and moisture. That means avoiding the bathroom if it tends to get hot and steamy.
A good habit is to keep them somewhere you'll see them every morning, like next to your other medications (if you take any) or on your bedside table. Out of sight often means out of mind, so making them part of your existing morning routine can make a difference.
Taking your first dose
Before you take your first dose, take a few minutes to read the patient information leaflet (PIL) that comes with your medication. It covers everything you need to know about your specific dose and what to expect.
When you're ready:
Take one tablet once a day, with or without food.
Swallow whole: don't break, crush, or chew it.
Try and take your tablet at the same time each day for the best results.
If you’ve switched from another weight loss treatment
If you’ve switched from Mounjaro, Wegovy injections or Wegovy pills, you’ll need to wait seven days (one week) between your last dose of that treatment and your first dose of Foundayo. Your prescriber will indicate the best time to start taking your new treatment.
3 tips for building your routine
Consistency is one of the most important things when it comes to getting the most from your treatment. Here are three simple ways to make it stick:
Take it at the same time every day. Tie your treatment to something you already do, like brushing your teeth, to help it become second nature.
Use reminders. Set a daily alarm on your phone until it becomes a habit.
Keep your pills somewhere visible. If you have to search for them, you're more likely to skip a dose. Keep them somewhere that's part of your morning routine.
What happens next?
Once you've taken your first dose, what can you expect to happen next?
The first few weeks will be about letting your body adjust to the medication rather than seeing dramatic results straight away. That's completely normal, and it doesn't mean it isn't working.
Notice how your approach to food changes
One of the first things many people notice is a gradual shift in their appetite. You might find you feel fuller sooner during meals, have fewer cravings, or simply feel less urge to snack between meals. These are all signs the medication is doing what it's supposed to.
“It's not unusual for people to notice changes in their appetite quite early on, even before significant weight loss begins. These subtle shifts are often the first sign that the treatment is taking effect.”
Most people don't see significant weight loss in the first few weeks, so try not to fixate on the scales too early. Progress tends to build gradually and consistently over time.
Quick tip: Track how you feel after meals rather than just your weight. Noticing changes in fullness and cravings can be a motivating early sign that things are working.
Find out how your body responds to the treatment
Everyone's experience with Foundayos is different. Some people sail through with very few side effects, while others find the first few weeks a little uncomfortable as their body adjusts.
However, Foundayo side effects tend to be mild and improve over time.
Pay attention to how different foods make you feel.
Some people find that rich, fatty, or heavily processed foods are harder to tolerate while on the medication. Finding the foods that sit well with you, and setting aside the ones that don't, can make the journey more comfortable.
If side effects are severe or don't settle down, always speak to your prescriber before continuing.
Quick tip: Keep a simple food diary for the first few weeks. It doesn't have to be detailed, just enough to spot patterns in how certain foods make you feel.
Start making changes to your diet
Foundayo works best when paired with a balanced diet. You don't need to overhaul everything at once, but small, sustainable changes tend to add up over time.
Take a look at our diet and nutrition guides for practical advice on eating well alongside your treatment.
Quick tip: Focus on adding more protein and vegetables to your meals rather than cutting things out. It's an easier place to start and tends to keep you fuller for longer.
Slowly increase your movement
You don’t need to start running marathons. Finding an exercise you enjoy and can keep up with is far more valuable than pushing yourself into something that doesn't stick. A daily walk, a swim once a week, or even a yoga class counts.
“Movement doesn't have to be intense to be effective. Consistency matters far more than intensity, especially when you're just getting started. Find something you enjoy and build from there.”
Ian Budd, Prescribing Pharmacist at Chemist4U
Quick tip: Start with something you already do, like walking to the shops instead of driving.
Taking the next step: when to increase your dose
Foundayo uses a gradual dosage schedule, which means your dose will increase over time to give your body a chance to adjust. Here's how it typically works:
Month four: 9mg pill once a day (potential maintenance dose)
Month five: 14.5mg pill once a day (potential maintenance dose)
Month six onwards: 17.2mg once a day (maximum dose)
You'd only move up to the next dose after at least 30 days on your current one, and only if you're tolerating it well.
Your prescriber will guide you through each increase and let you know when it's the right time to move up. Don't increase your dose without speaking to them first.
When to reorder
Whether you're staying on the same dose or moving up, it's important to make sure you don't run out. Complete your consultation in good time before your next order is due, as your prescriber will need to review your progress before approving your next supply.
Quick tip: Set a reminder a week before your supply is due to run out so you have plenty of time to complete your consultation and reorder.
How Chemist4U can help
If you have any questions about your Foundayo or anything else related to your weight loss journey, our team is here to help. You can find plenty of helpful advice in our weight loss guides hub.
We’ll also contact you when it’s time to re-order so you have plenty of time to get your next dose before you’re due to start it.
How long do you stay on each dose of the Foundayo?
You'd typically stay on each dose for around 30 days before moving up, as long as you're tolerating it well. Your prescriber will advise you on the right time to increase based on your individual progress and any side effects you've experienced.
Some people may stay on a lower dose for longer if needed, and that's completely fine.
Do you have to increase to 17.2mg?
No, you don't have to. If you're doing well on a lower dose and it's working for you, your prescriber may decide that staying there is the right call.
The typical maintenance doses for Foundayo are anywhere between 5.5mg and 17.2mg, so there’s plenty of room to find an option that works for you.
It's a conversation to have with your prescriber based on how you're getting on.
Sources
Foundayo. Eli Lilly and Company. [Accessed 13th August 2026].
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