Foundayo vs. Wegovy pill: which GLP-1 pill is better for weight loss?

With the Wegovy pill (semaglutide) and Foundayo (orforglipron) now available, it’s natural to ask: Which oral GLP-1 for weight loss might be best for me? While a healthcare provider is best equipped to help you answer that question, learning how the two pills stack up can make it easier to weigh your options. 

Read on as we compare Foundayo vs. the Wegovy pill: their key differences, similarities, and weight loss benefits. 

While they have different active ingredients, Foundayo and the Wegovy pill work similarly since they’re both GLP-1 medications. GLP-1s work by:

• Slowing down digestion, so you feel full sooner and longer

• Balancing blood sugar levels after you eat, which prevents hunger spikes

• Decreasing appetite, so you eat less and feel more in control of your eating

Here’s a quick look at the key differences between the Wegovy pill vs. Foundayo:

*Terms and restrictions may apply for certain doses of the pill. 

Foundayo and the Wegovy pill are both taken daily, but there are key differences in how they’re meant to be taken and how they’re absorbed by the body.

Administration

The Wegovy pill has stricter requirements around when and how you take your dose than Foundayo.

• Foundayo can be taken with or without food at any time of day. It should be swallowed whole. There’s no “best” time of day to take Foundayo, but taking it around the same time each day can help make it a consistent part of your routine.

• The Wegovy pill must be taken on an empty stomach in the morning, at least 30 minutes before food, beverages, and other oral medications. It should be swallowed whole with up to 4 ounces of plain water.

Absorption

As a non-peptide, Foundayo has a smaller molecular structure. This allows it to be better absorbed in the gut and taken with or without food, unlike the Wegovy pill, which is a peptide (like most GLP-1s) and must be taken on an empty stomach. 

These differences in absorption affect how quickly Foundayo and Wegovy start working and their bioavailabilities (i.e. how much of the active ingredient becomes available in your bloodstream).

• Wegovy starts working sooner. It takes about 4–8 hours for Foundayo to reach its peak concentration in your bloodstream. Meanwhile, it only takes Wegovy an hour.

• Foundayo has a higher bioavailability. Because it’s not as vulnerable to breakdown as oral Wegovy, Foundayo has a bioavailability of 77%, while Wegovy’s is only 1%–2%.

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The Wegovy pill is a bit more effective for weight loss than Foundayo, according to separate studies. Still, Foundayo’s weight loss results are nothing to scoff at.

• In clinical trials of Foundayo, the drug produced an average weight loss of up to 11.2% in 72 weeks (~a year and 4–5 months). If your starting weight is 250 pounds, that’s a loss of 28 pounds. 

• In clinical trials of the Wegovy pill, the drug produced an average weight loss of 13.6% in 64 weeks (~a year and three months). If your starting weight is 250 pounds, that’s a loss of 34 pounds.

Note that both studies included people without diabetes. People with type 2 diabetes tend to lose less weight on semaglutide compared to those without diabetes. In this group, the Wegovy tablet can lead to lower and less consistent levels of the medication. So it may not work as well — meaning the injection might be a better option for those with type 2 diabetes.

Foundayo and the Wegovy pill are both taken daily. They come in different dosage strengths:

• Foundayo comes in six dosage strengths: 0.8 mg, 2.5 mg, 5.5 mg, 9 mg, 14.5 mg, and 17.2 mg. The recommended maintenance dosage is 5.5 mg, 9 mg, 14.5 mg, or 17.2 mg, depending on your response to the medication. 

• The Wegovy pill comes in four dosage strengths: 1.5 mg, 4 mg, 9 mg, and 25 mg. The recommended maintenance dosage is 25 mg daily. 

Foundayo and the Wegovy pill both follow gradual titration schedules, slowly increasing the dosage to give your body time to adjust. You typically start by taking a low dose of the drug and slowly increase the dose until you reach a maintenance dose that works for you. 

For these oral GLP-1s, dosage increases typically happen every 30 days. But your healthcare provider may titrate you more slowly based on your response to the medication and tolerance for side effects.

Here’s a general dosing schedule of both drugs: 

Because Foundayo has more maintenance dosage options than Wegovy, it may take you more (or less) time to reach your maintenance dosage of the medication.

In contrast, the Wegovy pill has one maintenance dosage option: 25 mg daily. If you have trouble tolerating 25 mg, your prescriber may recommend switching to the Wegovy 1.7 mg weekly injection instead.

As GLP-1 medications, Foundayo and the Wegovy pill share similar side effects. These tend to be gastrointestinal in nature, ranging from mild to moderate in intensity. They’re usually at their worst when starting the medication and when increasing your dose. 

The Wegovy pill and Foundayo share the following common side effects:

• Nausea

• Constipation

• Diarrhea

• Vomiting

• Stomach pain, bloating, or upset

• Headache

• Gas (belching, flatulence)

• Heartburn

• Hair loss

Less commonly, both Foundayo and the Wegovy pill may cause additional side effects, including:

• Prickling, numbness, or tingling sensations in the skin (although the risk is notably higher with the Wegovy HD injection)

• Dizziness

• Hypoglycemia (low blood sugar)

• Stomach flu-like symptoms

• Increased heart rate

Both Foundayo and the Wegovy pill carry similar risks, including:

• Acute pancreatitis

• Allergic reaction to the medication

• Kidney or gallbladder problems

• Severe hypoglycemia (low blood sugar), especially in people taking certain diabetes medications

• Severe gastrointestinal reactions resulting in dehydration

• Diabetic retinopathy (diabetes-related vision loss or changes) in people with type 2 diabetes

• Pulmonary aspiration (inhaled stomach contents) during general anesthesia or deep sedation

Finally, both weight loss medications carry a boxed warning for thyroid cancer based on animal studies. While it’s not known if the risk is the same in humans, neither Foundayo nor Wegovy should be taken by people with a personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN2).

People who are pregnant, breastfeeding, or planning to conceive also should not take Wegovy or Foundayo.

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When purchased without insurance, Foundayo and the Wegovy pill cost about the same. Specific prices vary depending on the dose, with higher doses costing more than lower doses.

• Foundayo costs $149–$299 per month, depending on dosage strength, when paying cash on Ro.

• The Wegovy pill costs $149–$299 per month, depending on dosage strength, when paying cash on Ro.

The Wegovy pill also has a list price of $1,349.02. Meaning, it can cost thousands of dollars when you pay out-of-pocket without a discount card at your local pharmacy. 

If you have insurance, however, it can be a different story. Both Foundayo and the Wegovy pill can cost even less if your insurance plan covers them, thanks to each pill’s manufacturer savings offer. Either pill can cost as low as $25 per month with these offers, so long as you have a commercial insurance plan that covers Wegovy or Foundayo. 

People with government-funded insurance, such as Medicare or Medicaid, are not eligible for these savings offers. 

Foundayo and Wegovy tablets both interact with other medications, but in different ways.

Some medications can raise or lower Foundayo’s levels — and Foundayo can affect other drugs, as well. So your provider may adjust doses or avoid certain combinations. A few examples:

• If you take the antibiotic clarithromycin (Biaxin), Foundayo is typically limited to a maximum of 9 mg daily.

• If you take Foundayo with simvastatin (a cholesterol medication), the simvastatin dose is usually limited to 20 mg daily.

• Foundayo should not be used with ritonavir (an antiviral drug), as it can raise Foundayo levels too much.

If you take oral birth control pills, Foundayo may make them less effective. Because of this, you should switch to a non-oral method (e.g. IUD, patch) or use a backup method, such as condoms, for 30 days after starting Foundayo and for 30 days after each dose increase.

With Wegovy tablets, interactions are more about timing. For oral Wegovy to work properly, you must take it on an empty stomach and wait at least 30 minutes before taking any other oral pills.

Both Foundayo and Wegovy may increase the risk of low blood sugar when used with insulin or certain diabetes pills, such as glipizide or glyburide. Your provider may adjust the dose of diabetes medications or tell you to monitor your blood sugar more often. 

Your healthcare provider may factor in your other medications when choosing the best option. Always share everything you take, including supplements. 

Yes, you can generally switch between GLP-1 medications, including Foundayo and the Wegovy pill — as long as it’s done under the guidance and care of a healthcare provider. 

Some people tolerate one medication better than another, or your GLP-1 insurance coverage changes. Your healthcare provider will guide you on how to manage the switch to ensure a smooth transition and keep side effects to a minimum.

Their guidance may depend on how long you’ve been taking Foundayo or the Wegovy pill:

• If you’ve been taking Foundayo or the Wegovy pill for less than a month, they may have you start from scratch at the lowest dose of the other pill.

• If you’ve been taking Foundayo or the Wegovy pill for more than a month, they may still have you start from scratch. But if you were already taking a maintenance dose of Foundayo or the Wegovy pill, they may start you at a slightly higher dosage than the absolute lowest one.

Usually, the switch can start as soon as the next day. Instead of taking Wegovy or Foundayo, you simply start the new medication at the usual time. However, if you’re switching due to intolerable side effects, your healthcare provider may have you wait until those side effects subside before switching you to the new medication. 

Both Foundayo and the Wegovy pill are considered to be safe and effective weight loss pills. Your healthcare provider can help you find the best choice for you, based on your lifestyle, weight loss goals, and current health situation. Here are some factors to consider when deciding between Foundayo vs. the Wegovy pill:

Foundayo may be better if:

• You’re okay with more moderate weight loss results

• Your schedule changes from day to day and you want more flexibility around when you take your dose

• You’re worried about experiencing side effects that are more common with Wegovy, such as dizziness or increased heart rate

• Your insurance offers better coverage for Foundayo

The Wegovy pill may be better if:

• You want larger weight loss results

• You have a consistent morning routine and don’t mind waiting 30 minutes before eating, drinking, or taking other medication after your dose

• You also have heart disease and want to lower your cardiovascular risk

• Your insurance offers better coverage for Wegovy

• You take other medications that interact with Foundayo

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If you’re considering asking your doctor for weight loss pills, here's the high-level breakdown between Foundayo vs. the Wegovy pill. 

• You can lose more weight on Wegovy, but it has a stricter dosing schedule. Foundayo offers more flexibility as it can be taken at any time of day, with or without food, but it can produce slightly less weight loss (11.2% vs. 13.6%). 

• Both Foundayo and the Wegovy pill have a cash price of $149–$299 per month, depending on dose, on Ro. Lower dosage strengths cost less.

• Since both are GLP-1s, the pills have similar side effects and risks, which are usually GI-related. However, Wegovy can also cause an increased heart rate.