Foundayo pill dosage guide
Foundayo is a branded form of orforglipron, a daily weight loss pill manufactured by Eli Lilly, the same company that produces Mounjaro. Foundayo is a non-peptide small-molecule oral glucagon-like peptide-1 (GLP-1) receptor agonist that is taken every day with or without food to help you lose weight.
In this guide, we explain the available doses, the titration schedule, what to do if you miss a dose, and how Foundayo pill doses compare with other GLP-1 tablet doses.
Last reviewed: 29 Sept 2026
What's on this page?
- 1. Foundayo pill doses
- 2. Foundayo pill titration schedule
- 3. How to take the Foundayo pill
- 4. What happens if you miss a Foundayo pill?
- 5. What is the starting dose of Foundayo?
- 6. What is the maintenance dose of Foundayo?
- 7. What to expect when you increase your dose
- 8. Foundayo vs Wegovy pill doses compared
- 9. Is Foundayo right for me?
- 10. Frequently asked questions
Foundayo pill doses
Foundayo is available in 6 doses, ranging from 0.8mg to 17.2mg per day. You’ll begin at the lowest dose and gradually increase it every month until you reach the maximum maintenance dose or the dose that works best for you.
If your body tolerates orforglipron well, it will take 6 months to reach the maintenance dose. Following the dosing schedule helps your body get used to the active ingredient and reduces the chance of side effects.
Foundayo is taken once daily. It can be taken at any time of the day as long as it is taken at the same time each day to keep the medication at a consistent level in your body. Foundayo also has no food or water restrictions, so you can take it with or without food.
Foundayo pill titration schedule
The Foundayo pill dosage increases gradually over the first 6 months of treatment. This is called titration and helps to reduce the very common gastrointestinal side effects associated with taking Foundayo, such as feeling sick (nausea), being sick (vomiting), diarrhoea, and constipation.
The Foundayo dosing schedule looks like this:
| Treatment Month | Dose |
|---|---|
| Month 1 (starting dose) | 0.8mg |
| Month 2 | 2.5mg |
| Month 3 | 5.5mg |
| Month 4 | 9mg |
| Month 5 | 14.5mg |
| Month 6 (maintenance dose) | 17.2mg |
Month 1 (starting dose)
Month 2
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Month 3
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Month 4
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Month 5
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Month 6 (maintenance dose)
The Foundayo dosing schedule is a guide. Although you cannot increase your dose any sooner than 1 month, you can remain on a lower dose to help your body adjust or if you are getting side effects. You are most likely to get Foundayo side effects at the start of treatment and after each dose increase.
Can I stay on a low dose of Foundayo?
Yes, it is possible to remain on a low dose of Foundayo. Your doctor may advise staying on a lower dose if it is helping you to meet your weight loss goals, is managing your appetite well, or you are getting side effects. Not everyone who takes Foundayo will need to reach the maximum 17.2mg dose.
How to take the Foundayo pill
Foundayo does not have any food or drink restrictions, unlike other GLP-1 weight loss pills, such as the Wegovy pill, making it a more convenient and flexible option for some people.
How to take Foundayo correctly:
- Choose a time of day to take your Foundayo tablet that is convenient for you – you should take the tablet at the same time every day.
- Swallow the tablet whole, do not break, crush, or chew it. You can take it with or without food.
- Do not take more than 1 tablet per day.
What happens if you miss a Foundayo pill?
If you miss a Foundayo pill, take it as soon as you remember, but do not take more than one dose per day. It is important that you do not take a double dose to make up for a forgotten Foundayo dose as this can increase the chance of side effects.
If you missed:
- 4 Foundayo pill (4 days), stay on your current dose
- 5 to 10 Foundayo pills (5 to 10 days), you will need to go down at least one dose – for example, if you have been taking 9mg per day but have missed 7 pills, you will need to go down to 5.5mg per day
- more than 10 pills or days, you will need to start the dosing schedule again from the lowest 0.8mg daily dose
If you have missed any Foundayo pills and are unsure about what to do, speak to your doctor or pharmacist for advice.
What is the starting dose of Foundayo?
The starting dose of Foundayo is 0.8mg per day. You will usually remain on this dose for at least 1 month before increasing to the next dose, followed by a series of step-up doses. Starting your treatment on the lowest dose gives your body the chance to get used to orforglipron and minimises the chance of gastrointestinal side effects.
Side effects are most common when you start taking Foundayo because the medication changes how food moves through your digestive system and slows down its movement through your stomach. Your body needs time to adjust to these changes, and starting on a low dose of orforglipron can help.
What is the maintenance dose of Foundayo?
The maintenance dose of Foundayo is 17.2mg per day and this is the only maintenance dose available. However, you can remain on a lower dose if it is effective for you. In clinical trials, the maximum dose of Foundayo has produced the greatest weight loss results with people losing on average 12.4% of their starting body weight after 72 weeks compared to 0.9% on a placebo.
What to expect when you increase your dose
When you increase the Foundayo dose, the amount of orforglipron you take will also increase. This means you may notice that its effects become stronger, but so can the side effects as your body adjusts to the new dose.
As your Foundayo dose increases, you may notice that you:
- feel less hungry between meals
- feel full more quickly when eating a meal
- snack less and have fewer cravings
- find it easier to maintain a calorie deficit
- have less food noise
- get a return of or more intense side effects
It is normal for side effects to return when you increase your dose, but you can help to manage them by:
- eat smaller, more frequent meals
- avoiding high-fat, greasy, or spicy foods
- staying hydrated by taking small sips of water throughout the day
- eating slowly
- avoiding eating large meals before bed
- stopping eating when you feel comfortably full
Although Foundayo works by reducing your appetite, you will need to make changes to your lifestyle, such as following a reduced-calorie diet and increasing the amount of exercise you do.
How long do side effects usually last after a dose increase?
When you increase your Foundayo dose, side effects can last from a few days to a few weeks. They are usually at their most intense straight after you step up your dose and for the first few days of your new dose.
Foundayo vs Wegovy pill doses compared
Both Foundayo and the Wegovy pill are examples of daily oral GLP-1 receptor agonists that have been approved for weight loss in the UK. They work in the same way by mimicking the hormone GLP-1 to suppress your appetite and slow digestion. However, they contain different active ingredients and are available in different strengths which are not equivalent.
| Form | Oral tablet | Oral tablet |
|---|---|---|
| Active ingredient | orforglipron | semaglutide |
| Available doses |
6 doses:
|
4 doses:
|
| Starting dose | 0.8mg | 1.5mg |
| Maintenance dose | 17.2mg | 25mg |
| How often can you increase the dose? | Every month | Every month |
| How long does it take to reach the maintenance dose? | 6 months | 4 months |
| Do I need to fast before taking it? | No, can be taken with or without food and drink | Yes, it must be taken on an empty stomach and 30 minutes before eating, drinking, or taking other oral medications |
| Average weight loss in clinical trials | 12.4% on 17.2mg after 72 weeks | Up to 17% on 25mg after 64 weeks |
| Cost | From £107.99 | From £97.99 |
| Approved in the UK? | Yes | Yes |
Foundayo
Available doses
6 doses:
- 0.8mg
- 2.5mg
- 5.5mg
- 9mg
- 14.5mg
- 17.2mg
Wegovy pill
Available doses
4 doses:
- 1.5mg
- 4mg
- 9mg
- 25mg
Is Foundayo right for me?
Foundayo may be right for you if you are eligible for weight loss treatment and have a preference for a daily pill that has a more flexible dosing regimen. This makes Foundayo a good alternative for people who find it difficult to fast or cannot commit to the more rigid Wegovy pill schedule or anyone who feels uncomfortable with injections.
You may be suitable for Foundayo if you have a body mass index (BMI) of:
- 30 or above
- 27 to 30 with a weight-related health condition, such as prediabetes, high blood pressure, high cholesterol, or obstructive sleep apnoea
You might choose Foundayo if you:
- want a more convenient dosing regimen – you can take Foundayo with or without food as it remains stable in the stomach and does not need a special coating to help its absorption
- are uncomfortable with needles or injections – Foundayo is a daily pill that is swallowed rather than a weekly or daily injection
- are allergic to or cannot tolerate semaglutide – if you have had side effects while taking the Wegovy pill or the Wegovy injection, Foundayo may be a more suitable option as it has has a different active ingredient
If you think Foundayo may be the right weight loss treatment for you, start a consultation with one of our doctors today.
Frequently asked questions
Can I take Foundayo without food?
Yes, you can take Foundayo without food. It can be taken at any time of the day, but it should be taken at the same time each day, with or without food, and has no special fasting or water restrictions.
Can I take Foundayo alongside other GLP-1 medicines, like Mounjaro or Wegovy?
No, you cannot take Foundayo alongside any other GLP-1 medications, including Mounjaro or Wegovy. Combining these medications will not increase your weight loss but can increase the chance of severe side effects, including feeling or being sick, diarrhoea, constipation, low blood sugar levels, pancreatitis and severe stomach emptying delays.
How should I store Foundayo tablets?
Foundayo does not have any special temperature storage requirements. You should keep the Foundayo tablets out of the sight and reach of children and store them in their original packaging to protect them from light, as the medication is light-sensitive.
What if I'm sick shortly after taking my tablet?
If you are sick (vomit) after taking a Foundayo pill, do not take another dose to replace it. Instead, you must wait until your next scheduled dose, usually the next day. That’s because taking another tablet can make any side effects worse or cause an overdose.
If you are sick, sip small sips of water to prevent dehydration, and eat simple, low-fat, bland foods, such as crackers or toast, if you feel up to eating.
Accreditations: MB, ChB, MPH
Dr Kathryn Basford is a GP based in London. She graduated from the University of Manchester and completed her GP training through Whipps Cross Hospital in London. Outside of work she enjoys baking and keeping active, running marathons, swimming, and triathlons.
Last reviewed: 29 Sept 2026
Sources
- Foundayo 14.5 mg film-coated tablets, electronic medicines compendium (emc) [accessed 24 August 2026]
- Oral Semaglutide at a Dose of 25 mg in Adults with Overweight or Obesity, The New England Journal of Medicine (NEJM) [accessed 24 August 2026]
- Orforglipron, an Oral Small-Molecule GLP-1 Receptor Agonist for Obesity Treatment, The New England Journal of Medicine (NEJM) [accessed 24 August 2026]
- Wegovy 0.25 mg, FlexTouch solution for injection in pre-filled pen, electronic medicines compendium (emc) [accessed 24 August 2026]
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