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Wegovy vs Saxenda – Which is Better for Weight Loss?

David Fuller

Last Updated On: July 5, 2024

Managing type 2 diabetes often involves insulin therapy, and many individuals rely on insulin pens for precise dosing. Among these options, Wegovy (semaglutide) and Saxenda (liraglutide) are FDA-approved injectables noted for their efficacy in weight loss.

Both medications belong to the glucagon-like peptide 1 (GLP-1) agonist class. While both treatments can aid weight management, they differ in formulation and dosing schedules. Factors influencing the choice between Wegovy and Saxenda include individual patient response and tolerability.

In this article, we delve into the effectiveness, dosing, and safety profiles of Wegovy and Saxenda to empower informed decisions regarding weight loss strategies.

Key Takeaways

  • Wegovy and Saxenda are both medications used for weight loss management.
  • They have different mechanisms of action, influencing appetite and metabolism in distinct ways.
  • Clinical trial data shows that both medications are effective for weight loss, but the extent of weight loss may vary.
  • Safety profiles of Wegovy and Saxenda include common and serious side effects that need to be considered.
  • Practical considerations such as dosing schedules, patient selection criteria, and cost are important factors in choosing the most suitable treatment for weight management needs.

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Understanding Wegovy and Saxenda

Wegovy and Saxenda are medications designed to aid weight loss by controlling hunger and regulating energy use. Both drugs target brain areas that regulate appetite by mimicking the hormone GLP-1, which is naturally produced after eating. This hormone helps manage blood sugar levels and slows stomach emptying, making you feel fuller for longer.

Saxenda also helps control blood sugar levels, providing additional benefits for overweight or obese individuals. Both medications promote weight loss by reducing hunger and overall food intake.

Wegovy and Saxenda each have unique effects on metabolism. Users often report reduced appetite and satisfaction from smaller meals. Understanding their mechanisms is crucial for effective weight management and preventing weight regain after initial success.

Efficacy Comparison

Exploring Wegovy’s clinical trial data and observing some Wegovy weight loss before and after pictures offer insight into its efficacy in weight loss management. This detailed look provides medical professionals with the data to gauge how Wegovy performs in real-world scenarios.

Image courtesy of People

Clinical trials have demonstrated the effectiveness of Wegovy in promoting weight loss. In rigorous 68-week studies involving over 4,500 participants who were either obese or overweight, Wegovy consistently led to significant reductions in body weight. Remarkably, more than 80% of Wegovy users achieved weight loss of 5% or more compared to those on placebo. 

Some participants even experienced weight reductions exceeding 10% of their initial weight. However, it’s essential to remain vigilant for potential adverse effects, such as acute pancreatitis, which was observed in patients during the trials.

Clinical Trial Data for Saxenda

Transitioning from the clinical trial data for Wegovy, we now turn our attention to Saxenda. Much like its counterpart, Saxenda has been the subject of rigorous clinical investigations to determine its efficacy in weight loss among adults.

Image courtesy of Reddit

Saxenda, an injectable medication, has garnered attention for its weight loss benefits. In clinical trials, it demonstrated sustained efficacy over three years, with more than 50% of patients achieving clinically meaningful weight reduction. However, its daily dosing regimen requires consistent adherence. 

Saxenda’s safety profile aligns with its effectiveness, making it a viable option for those seeking weight management solutions. As always, consult your healthcare provider to determine the best approach based on your individual needs and preferences.

Safety Profiles

Wegovy and Saxenda have become notable names in weight loss treatments. Their common side effects are linked to their mechanism of action, which influences appetite and metabolism.

  • Nausea: Many users report feeling sick during their first weeks of use.
  • Diarrhea: The drug can upset the digestive system, leading to frequent trips to the bathroom.
  • Constipation: On the flip side, some find it hard to have regular bowel movements.
  • Headaches: A common complaint is headaches, which usually worsen over time.
  • Dizziness: Feeling dizzy or light-headed is another side effect users noted.
  • Fatigue: People might feel unusually tired or weak while on Saxenda.
  • Upper Respiratory Infection: Users have reported catching colds more easily.
  • Back Pain: Some individuals experience discomfort in their back area.

Serious Side Effects of Wegovy and Saxenda

Wegovy and Saxenda both come with a list of serious side effects that medical professionals need to be aware of. These range from issues affecting the thyroid to severe allergic reactions.

  • Thyroid Tumors: Saxenda may increase the risk of thyroid C-cell tumors, as seen in rodents, though human risk is unclear.
  • Pancreatitis: Some patients experience severe stomach pain, possibly radiating to the back, with or without vomiting.
  • Gallbladder Problems: Risks include gallstones and gallbladder inflammation, potentially needing surgery.
  • Increased Heart Rate: Monitoring is needed due to potential significant increases in heart rate.
  • Kidney Damage: There have been reports of kidney failure or worsening chronic kidney disease.
  • Serious Allergic Reactions: Symptoms may include swelling, rash, or difficulty breathing.
  • Dehydration: Often caused by nausea and vomiting, which can lead to kidney issues.

Practical Considerations

Choosing Wegovy or Saxenda involves more than just evaluating their effectiveness. We must also consider when to take each one and its cost.

Dosing Schedules for Wegovy

Wegovy is a medication used by adults to lose weight. It makes you feel full longer, helping you eat less. Here are the steps for using Wegovy:

  • The starting dose is 0.25 mg once a week for the first four weeks. This low dose helps your body get used to the medicine.
  • After four weeks, increase the dose to 0.5 mg once a week. This will improve its effectiveness while monitoring for side effects.
  • At week eight, up the dose again to 1 mg once a week. By now, you might start seeing significant weight loss results.
  • After twelve weeks of treatment, the dose increases to 1.7 mg weekly, which is often considered the maintenance or ongoing dose.
  • A higher dose of 2.4 mg once a week can be prescribed for patients who tolerate Wegovy well and need additional weight loss after at least 16 weeks.

Dosing Schedules for Saxenda

Saxenda’s dosing is designed with a gradual increase in mind to help reduce gastrointestinal side effects. Here is what medical professionals need to know about Saxenda’s dosing schedule:

  • Start with a low dose of 0.6 mg per day in the first week to help patients adjust.
  • Increase the dose to 1.2 mg daily in week two and closely monitor for side effects.
  • Progress to 1.8 mg daily in week three, noting potential appetite changes.
  • Raise the dose to 2.4 mg per day in week four; monitor patient feedback closely.
  • Increase to a maintenance dose of 3.0 mg daily by week five.
  • Maintain this dosage as long as it remains effective and well-tolerated.
  • Use the Saxenda pen injector provided for accurate dosing.
  • Store the pen in refrigeration before first use and at room temperature afterward.
  • Advise against sharing the Saxenda pen to prevent infections, even with changed needles.
  • Educate patients on possible side effects like nausea and the benefits of gradual dose increases.

Patient Selection Criteria

Selecting suitable patients for Wegovy or Saxenda involves looking at their weight, health conditions, and current medications. These medications are often recommended for severe obesity when other diets haven’t worked, especially for those with heart disease, diabetes, or high blood pressure. 

Doctors take extra care with patients who have a history of thyroid cancer or rare hormone issues. Each decision is made by carefully weighing the benefits and risks. Next, let’s talk about the cost of these treatments.

Cost Comparison

Wegovy generally costs more than Saxenda, reflecting its higher dose of semaglutide than Saxenda’s liraglutide. Insurance coverage may vary, with some plans covering Wegovy more extensively due to its newer status and potentially greater efficacy. Patients should compare costs and coverage options to determine the most affordable choice.


Choosing between Wegovy and Saxenda for weight loss depends on individual needs, side effects, and body response. Both help with appetite control and weight loss but have varying side effects, costs, and dosing schedules. Ultimately, it’s a personal choice based on which medication best fits your lifestyle and preferences.


1. What is Wegovy, and how does it aid weight loss?

Wegovy is a weight management medication that mimics a hormone affecting brain regions controlling appetite and food intake.

2. How do Wegovy’s side effects compare to other weight loss medications like Saxenda, Mounjaro, or Zepbound?

Side effects vary among medications and individuals. For specific details, consult the prescribing information for each drug.

3. Are there any known issues with administering Saxenda?

There are known issues with administering Saxenda. Common side effects include nausea, vomiting, diarrhea, constipation, and low blood sugar. More severe risks include pancreatitis, gallbladder problems, kidney issues, and potential thyroid tumors, so it’s crucial for patients to be monitored by a healthcare provider.

4. Are there any known issues with administering Wegovy?

Occasional pen malfunctions have been reported, though they are rare.


The Differences Between Saxenda and Wegovy. Verywell Health. https://www.verywellhealth.com/the-differences-between-saxenda-and-wegovy-7564310 

Liggon R. Wegovy or Saxenda for Weight Loss? GoodRx. Published February 14, 2022. https://www.goodrx.com/conditions/weight-loss/wegovy-vs-saxenda 



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