Key takeaways:
Foundayo (orforglipron) is an oral glucagon-like peptide-1 (GLP-1) receptor agonist that’s FDA approved for weight loss in certain adults. It comes in several tablet doses to allow for dose adjustments.
The typical starting Foundayo dosage is 0.8 mg by mouth once daily. Your prescriber should raise your dose slowly over time, and it may take a few months to reach your target dosage.
Maintenance dosages can range from 5.5 mg daily up to a maximum Foundayo dosage of 17.2 mg daily.
There are ways to save on Foundayo. GoodRx can help you access Foundayo starting at $149 per month. Subscribers to GoodRx for Weight Loss can also access FDA-approved brand-name GLP-1 medications like Foundayo.
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Foundayo (orforglipron) is a newer weight-loss medication that comes as a once-daily pill. Unlike injectable glucagon-like peptide-1 (GLP-1) receptor agonists, Foundayo doesn’t require shots. And compared with oral Wegovy (semaglutide), it’s easier to take. There are no strict timing rules, and you can take it with or without food.
Most people start taking Foundayo at a low dose and gradually increase it over time — as is common with all GLP-1 medications. This step-by-step approach helps your body adjust and can lower the risk of side effects, such as nausea, vomiting, and diarrhea.
Here, we’ll walk through typical Foundayo dosages so you know what to expect.
Good to know: Foundayo is only FDA approved for adults. It isn’t approved for kids or teens.
What’s the typical Foundayo dosage for adults?
Foundayo is a once-daily medication. You can take it at any time of day, with or without food. It comes in 6 tablet doses ranging from 0.8 mg to 17.2 mg.
Most people start off by taking 0.8 mg once daily for at least 30 days. This starting Foundayo dosage helps your body get used to the medication before moving to higher doses.
After that, your prescriber will likely increase your dose in steps, usually every 30 days. A typical Foundayo dosage timeline looks like this:
Month 1 (days 1-30): 0.8 mg once daily
Month 2 (days 31-60): 2.5 mg once daily
Month 3 (days 61-90): 5.5 mg once daily
At this point, it’s a good time to check in with your prescriber. If the medication is working well, you may stay at 5.5 mg once daily. If you’re not seeing the results you want, your dose may keep increasing every 30 days. Each dose increase depends on how well the medication is working and how you’re tolerating it. If side effects become an issue, your prescriber may keep you at your current dose longer before increasing.
Subsequent Foundayo dosages include:
9 mg once daily
14.5 mg once daily
17.2 mg once daily (maximum dose)
Not everyone needs the highest dose. Some people stay at a lower dose if it’s helping them meet their body-weight goals.
Are there any Foundayo dosage adjustments for medical conditions?
Most people follow the same step-by-step dosage schedule with Foundayo. But your health history and other medications may affect how your dose is adjusted.
Foundayo dosage for people with liver problems
If you have severe liver problems, your prescriber will likely want you to avoid taking Foundayo altogether. The liver helps your body metabolize Foundayo, and if it’s not working well, the medication could build up in your system and lead to extra side effects.
People with milder liver issues can usually take standard doses of Foundayo. But, to be safe, your prescriber may watch you relatively closely as your dose goes up.
Foundayo dosage for people taking interacting medications
Some medications can affect how Foundayo works in your body. This may change how your dose is adjusted over time.
Certain medications can raise Foundayo levels, which may increase your risk of side effects. These medications include some antifungals and antibiotics, such as oral ketoconazole and clarithromycin (Biaxin XL). If you need one of these medications, your dose may need to be limited. In many cases, the maximum recommended Foundayo dosage is 9 mg once daily while taking these medications.
Other medications can lower Foundayo levels, which may make it less effective. For example, medications such as rifampin (Rifadin) and carbamazepine (Tegretol) may reduce how well Foundayo works. These combinations are usually avoided as a result.
Interacting medications can be hard to spot on your own. Before starting Foundayo, share a full list of medications and supplements you take with your prescriber and pharmacist. They can check for interactions ahead of time and adjust your medications if needed — especially since Foundayo can affect how other medications work too.
What happens if you miss a dose of Foundayo?
If you miss a dose of Foundayo, take it as soon as you remember.
If it’s close to your next scheduled dose, skip the missed dose and take your next dose at the usual time. Don’t take two doses at once. This can increase your risk of side effects.
However, if you miss several doses in a row, typically a week’s worth of medication, contact your prescriber. You’ll likely need to restart the medication at a lower dose.
What should you do if you take too much Foundayo?
There isn’t much data on what happens if you take too much Foundayo. But taking more than prescribed may increase your risk of side effects, especially those affecting your stomach.
If you accidentally take one or two extra doses, you may notice more nausea or other digestive symptoms that improve over time. Symptoms may include:
Nausea or vomiting
Diarrhea
Stomach pain
Indigestion
Appetite changes
If you think you’ve taken too much medication, call your prescriber for advice. If they’re not available, you can contact Poison Control online or at 1-800-222-1222. However, if your symptoms feel severe or don’t go away, it’s better to call 911 or go to the nearest ER right away.
How to save on Foundayo
There are ways to save on Foundayo, which is available as a brand-name medication. GoodRx can help you navigate between GoodRx coupons and copay savings cards to save money on your prescription.
Save with GoodRx. GoodRx can help you access Foundayo starting at $149 per month. Subscribers to GoodRx for Weight Loss can also access FDA-approved brand-name GLP-1 medications like Foundayo.
Save with a copay savings card. If you have commercial insurance, you may be eligible to pay as little as $25 per month for Foundayo using a savings card from the manufacturer.
Save with LillyDirect. Foundayo is available through LillyDirect for $149 (0.8 mg), $199 (2.5 mg), and $299 (5.5 mg, 9 mg, 14.5 mg, and 17.2 mg).
Frequently asked questions
Yes, it’s possible to switch from an injectable GLP-1 medication to Foundayo. Your prescriber may recommend switching if the pill is a better fit for your routine or preferences.
Even if you’ve taken a GLP-1 medication before, you’ll likely still start Foundayo at a low dose and increase it slowly over time. This should reduce the risk of side effects. Your prescriber will be in charge of telling you how to make the switch safely. This may include stopping your current medication and waiting before starting Foundayo.
No, Foundayo is only approved for adults. Researchers don’t have enough information yet to know if it’s safe or works for children.
Yes, you can take Foundayo at any time of day, morning or night. The more important thing is choosing a time that fits your routine and sticking with it. Consistency helps the medication work at its best.
Yes, it’s possible to switch from an injectable GLP-1 medication to Foundayo. Your prescriber may recommend switching if the pill is a better fit for your routine or preferences.
Even if you’ve taken a GLP-1 medication before, you’ll likely still start Foundayo at a low dose and increase it slowly over time. This should reduce the risk of side effects. Your prescriber will be in charge of telling you how to make the switch safely. This may include stopping your current medication and waiting before starting Foundayo.
No, Foundayo is only approved for adults. Researchers don’t have enough information yet to know if it’s safe or works for children.
Yes, you can take Foundayo at any time of day, morning or night. The more important thing is choosing a time that fits your routine and sticking with it. Consistency helps the medication work at its best.
The bottom line
Foundayo (orforglipron) is a once-daily glucagon-like peptide-1 (GLP-1) pill that's FDA approved for weight loss in certain adults. The typical starting Foundayo dosage is 0.8 mg once daily. From there, your prescriber may raise your dose every 30 days, depending on how you’re responding to the medication. The maximum Foundayo dosage is 17.2 mg once daily.
Your Foundayo dosage is increased gradually to give your body time to adjust to the medication. This helps make side effects, such as nausea or diarrhea, easier to handle. Your final dosage will depend on how well Foundayo is working and how you tolerate it.
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References
Eli Lilly and Company. (2026). Does Foundayo (orforglipron) interact with other medications?
Eli Lilly and Company. (2026). 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.
Eli Lilly and Company. (2026). Foundayo- orforglipron tablet, film coated [package insert].
