Rybelsus® Weight Loss: How It Works, Results & Risks

November 26, 2025

Last Updated: Nov 26, 2025

Weight Loss
10 min read

Discover what Rybelsus® is, how this oral semaglutide (GLP-1) medication works, and its FDA-approved benefits for blood sugar management.

Key takeaways
  • Rybelsus® weight loss is generally discussed in the context of off-label use and potential weight changes seen in some people taking the medication. Rybelsus is an oral form of semaglutide (a GLP-1 receptor agonist) that’s FDA-approved specifically for managing type 2 diabetes, not as a weight loss drug.
  • This medication works by mimicking the GLP-1 hormone, which helps slow stomach emptying, reduce appetite, and secrete insulin when blood sugar is elevated.
  • Since it’s a pill—and not an injectable—Rybelsus® offers a convenient option, but it should be taken first thing in the morning on an empty stomach.
  • Common side effects include nausea, an upset stomach, and diarrhea, yet not everyone experiences them.
  • Rybelsus® isn’t recommended during pregnancy; always talk with a healthcare provider if you are pregnant, planning a pregnancy, or breastfeeding.
  • Rybelsus®  has a boxed warning about the risk of thyroid C-cell tumors in animal studies and should not be used by people with a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).

This article is not intended as professional medical advice, diagnosis, or treatment. Always discuss your specific situation with a licensed healthcare provider before starting, changing, or stopping any medication or therapy.

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What is Rybelsus®?

Rybelsus®, an oral form of semaglutide, often comes up when discussing other GLP-1 medications. While it’s FDA-approved, specifically for type 2 diabetes, you may wonder if it can support your weight management goals. 

But first, what is semaglutide anyway? And how exactly does the oral form, Rybelsus®, work?

Semaglutide falls under a class of medications called GLP-1 receptor agonists. As a prescription drug, it’s used under medical supervision, primarily for blood sugar management. 

Rybelsus® is taken orally, offering a convenient alternative to traditional injectable GLP-1 therapies. However, it’s worth noting that only a qualified healthcare professional can determine if semaglutide is right for you and your situation.

How Does Rybelsus® Work?

Rybelsus® contains semaglutide. This and other GLP-1 receptor agonists mimic the hormone GLP-1 (glucagon-like peptide-1), which is released after eating and can help regulate appetite, digestion, and blood sugar levels. 

In this way, Rybelsus® contributes to:

  • Slower stomach emptying
  • Reduced appetite and fewer food cravings
  • Increased insulin secretion (when blood sugar is elevated)

Since it’s taken orally, Rybelsus® is absorbed through the stomach lining. This means it’s best taken first thing in the morning on an empty stomach, with a bit of water. Waiting about 30 minutes before you eat or drink anything also ensures it’s properly absorbed. 

So, what kind of benefits are linked to this medication?

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Rybelsus® Benefits

Rybelsus® is FDA-approved for type 2 diabetes, meaning its primary benefit revolves around blood sugar management. So, here’s what is most commonly experienced when taking this oral form of semaglutide.

Supports Blood Sugar Management

When used as prescribed, semaglutide helps regulate insulin and blood sugar. For instance, after a meal, it helps improve the body’s insulin response, which keeps blood sugar levels within healthy ranges.

May Reduce A1C Levels

A1C levels indicate how much sugar is attached to the hemoglobin in your red blood cells, and higher levels suggest higher blood sugar levels over time. Thus, many individuals with uncontrolled diabetes tend to have higher A1C levels.

However, studies show that semaglutide can help improve A1C levels, indicating better blood sugar control.

May Reduce Appetite

Because it slows stomach emptying, many report feeling fuller for longer when taking Rybelsus®. In turn, this could lead to fewer cravings. Not everyone experiences appetite or weight changes, and any weight loss is not guaranteed.

Offers a Convenient Option

Injections can be cumbersome, requiring a bit more time, proper storage, and proper technique. Yet, taking semaglutide orally makes long-term therapy more accessible and convenient.

Rybelsus® and Weight Changes

Because Rybelsus® (oral semaglutide) slows stomach emptying and may reduce appetite, some individuals taking it for type 2 diabetes notice weight changes over time.

A few important points to keep in mind about Rybelsus® weight loss results:

  • Rybelsus® is not FDA-approved as a weight loss drug.
  • Any weight changes are considered a side effect while using Rybelsus® for blood sugar management.
  • Not everyone loses weight; some people may see little change or even gain weight.

If weight loss is your primary concern, talk to your healthcare provider about your options, including medications that are specifically approved for chronic weight management.

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Rybelsus® Side Effects

Like other GLP-1 medications, side effects can happen when taking Rybelsus®. While not everyone experiences them, it’s always good to know what could occur.

Side effects may include:

  • Nausea
  • Stomach upset
  • Decreased appetite
  • Diarrhea
  • Vomiting
  • Constipation
  • Heartburn
  • Bloating
  • Fatigue

Serious side effects and important warnings

Serious side effects are less common but can occur. If you experience any signs of pancreatitis, such as severe abdominal pain, a rash, swelling, difficulty breathing, or intense stomach pain, it’s essential to seek immediate medical attention.

Rybelsus® also has a boxed warning about the risk of thyroid C-cell tumors seen in animal studies. Because of this, it should not be used by people with:

  • A personal or family history of medullary thyroid carcinoma (MTC), or
  • Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).

Tell your healthcare provider right away if you notice a lump or swelling in your neck, hoarseness, trouble swallowing, or shortness of breath.

Additionally, it’s not recommended during pregnancy. Always discuss your plans with a licensed healthcare provider if you are pregnant, planning to become pregnant, or breastfeeding. 

This is not a complete list of side effects or risks. Talk with your healthcare provider and review the full Prescribing Information and Medication Guide for more details.

Final Thoughts

When it comes down to it, Rybelsus® is approved for adults with type 2 diabetes to help manage blood sugar. It’s not suitable for every person, and it’s not approved as a weight loss drug. As such, discussing your options with your healthcare provider can help you determine if it’s right for you and your situation.

Disclaimer: The FDA does not approve compounded medications for safety, quality, or manufacturing. Prescriptions and a medical evaluation are required for certain products. The information provided on this blog is for general informational purposes only. It is not intended as a substitute for professional advice from a qualified healthcare professional and should not be relied upon as personal health advice. The information contained in this blog is not meant to diagnose, treat, cure, or prevent any disease. Readers are advised to consult with a qualified healthcare professional for any medical concerns, including side effects. Use of this blog's information is at your own risk. The blog owner is not responsible for any adverse effects or consequences resulting from the use of any suggestions or information provided in this blog.

Eden is not a medical provider. Eden connects individuals with independent licensed healthcare providers who independently evaluate each patient to determine whether a prescription treatment program is appropriate. All prescriptions are written at the sole discretion of the licensed provider. Medications are filled by state-licensed pharmacies. Please consult a licensed healthcare provider before making any medical decisions.

Frequently asked questions

What is semaglutide oral?

Semaglutide oral, sold under the brand name Rybelsus®, is a prescription GLP-1 receptor agonist in pill form. It’s FDA-approved for managing type 2 diabetes and works by mimicking the GLP-1 hormone to help regulate blood sugar.

Does oral semaglutide work?

Yes, oral semaglutide works for its approved purpose, helping manage type 2 diabetes.

Can oral semaglutide cause weight loss?

While Rybelsus® isn’t FDA-approved for weight loss, some people may experience a reduced appetite and weight changes as a side effect.

How does Rybelsus® help you lose weight?

Rybelsus® may contribute to weight changes by slowing digestion and reducing appetite. With that said, however, it’s only approved for type 2 diabetes management, not weight loss. If weight loss is your primary concern, talk to your healthcare provider about your options.

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References

Bonora, B. M., Russo, G., Leonetti, F., Strazzabosco, M., Nollino, L., Aimaretti, G., Giaccari, A., Broglio, F., Consoli, A., Avogaro, A., Fadini, G. P., & GLIMPLES Study Investigators (2024). Effectiveness of oral semaglutide on glucose control and body weight up to 18 months: a multicenter retrospective real-world study. Journal of endocrinological investigation, 47(6), 1395–1403. https://doi.org/10.1007/s40618-024-02309-2

Capehorn, M., Ghani, Y., Hindsberger, C., Johansen, P., & Jódar, E. (2020). Once-Weekly Semaglutide Reduces HbA1c and Body Weight in Patients with Type 2 Diabetes Regardless of Background Common OAD: a Subgroup Analysis from SUSTAIN 2-4 and 10. Diabetes therapy : research, treatment and education of diabetes and related disorders, 11(5), 1061–1075. https://doi.org/10.1007/s13300-020-00796-z

Pillarisetti, L., & Agrawal, D. K. (2025). Semaglutide: Double-edged Sword with Risks and Benefits. Archives of internal medicine research, 8(1), 1–13. https://doi.org/10.26502/aimr.0189

Safety Data | RYBELSUS® (semaglutide) tablets 7 mg or 14 mg. (n.d.). novoMEDLINK. https://www.novomedlink.com/diabetes/products/treatments/rybelsus/efficacy-safety/safety-data.html