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In 2022, the World Health Organization reported that 43% of adults were classified as overweight, while 16% are obese. These conditions can potentially lead to heart disease, stroke and diabetes. With obesity rates on the rise, weight loss medications like Wegovy are gaining traction as solutions for managing this public health crisis.

Wegovy is an injectable drug prescribed for weight loss management and to reduce the risk of heart disease. It was approved by the FDA in 2021 and has gained popularity ever since. Novo Nordisk, the maker of Wegovy, reported a surge in demand for the drug in the US with weekly sign-ups surpassing 25,000 in the first quarter of 2024.

For those thinking about trying Wegovy, knowing the risks, benefits, and how it compares against other weight-loss options is essential. In this article, we dive into Wegovy’s safety and efficacy, and important considerations before taking it.

Key Takeaways

  • In clinical trials, Wegovy users achieved an average weight loss of 14.9% over 68 weeks, significantly higher than the 2.4% loss in the placebo group.
  • Long-term results show that 77% of Wegovy users maintained a weight loss of 5% or more after two years, indicating its effectiveness for sustained weight management.
  • Wegovy is generally safe for weight loss, with mild side effects like nausea and constipation reported in only 8% of users in a clinical study.
  • Wegovy is the first weight loss medication approved to prevent major cardiovascular events in adults with heart disease and obesity or being overweight.
  • Caution is advised for seniors using Wegovy due to muscle and bone loss risks and potential nutrient deficiencies.

Approved Wegovy Indications

The FDA approved Wegovy for chronic weight management for the following users:

    • Adults with Obesity: BMI of 30 kg/m² or greater.
    • Adults who are Overweight: BMI of 27 kg/m² or greater, with one or more weight-related conditions (e.g., hypertension or type 2 diabetes).
    • Adolescents (12+) with Obesity: Classified by BMI.
    • Adults with Heart Disease: For those who are overweight or obese, Wegovy can lower the risk of serious cardiac issues, such as heart attacks, strokes, and heart failure.

Wegovy’s Efficacy in Weight Loss and Cardiovascular Health

In a clinical trial, Wegovy users experienced an average weight loss of 14.9% over 68 weeks, compared to just 2.4% for those on a placebo. Majority in the Wegovy group achieved at least 5% weight loss, with many losing over 10% or even 15%. Additionally, Wegovy users showed notable improvements in cardiometabolic health and physical function. Each weekly injection delivers a precise dose of semaglutide, helping users control appetite and improve metabolic function.

Supporting this, a separate study involving 304 adults with obesity or overweight were given a 2.4 mg dose of WeWegovy has a good long-term safety profile, talking with a healthcare govy weekly or a placebo for 104 weeks. Long-term results indicated that 77% of Wegovy users maintained a weight loss of 5% or more after two years.

Wegovy’s Safety for Users

Here are the key points regarding the safety of Wegovy for its intended uses and different user groups:

Wegovy and Weight Loss: What the Safety Data Says

Wegovy is safe for weight loss, as it is FDA-approved for this purpose. A 68-week clinical trial of participants aged 18 to 79 showed that while most patients experienced mild side effects like nausea and constipation, serious side effects were rare, affecting only 8% of users. Some patients discontinued due to side effects, mainly gastrointestinal-related. As a postmarket drug, Wegovy continues to be monitored for long-term safety and rare adverse reactions through ongoing surveillance.

A separate 104-week clinical trial found that gastrointestinal adverse events reported were mild to moderate.

For teens, the American Academy of Pediatrics (AAP), suggests that Wegovy can be safe and beneficial for teens with severe obesity, especially those who have developed weight-related health complications. However, it should be used alongside lifestyle changes like proper nutrition, exercise, and support from family and healthcare providers. Experts recommend Wegovy primarily for teens facing significant health issues due to their weight.

Special Considerations for Seniors Using Wegovy

Medical experts advise caution when prescribing Wegovy to seniors, especially those over 70. Wegovy may pose safety concerns for seniors, including muscle and bone loss risks, as older adults are more prone to lose bone density and muscle mass with age. Weight loss can accelerate bone deterioration, as the body may lose essential minerals that support bone strength, but proper diet and physical exercise can prevent this.

Also, Wegovy’s ability to suppress appetite can cause a lack of important nutrients, especially protein, vitamins, and minerals. This can be potentially problematic for older people, as their bodies are less efficient at absorbing these nutrients than younger individuals.

Using Wegovy During Pregnancy: What You Should Know

Wegovy is not considered safe for pregnancy as animal studies suggest that semaglutide, the active ingredient in Wegovy, leads to structural issues, growth delays, and higher chances of fetal loss. It’s recommended to discontinue Wegovy when pregnancy is detected and advise patients of the potential risks. Also, if a couple plans to get pregnant, discontinue Wegovy for at least 2 months beforehand.

Breastfeeding While on Wegovy: Is It Advisable?

Limited information exists on whether Wegovy passes into human breast milk. However, animal studies suggest that it may be transferred into breast milk in small amounts. A physician can help users understand the benefits and risks of using Wegovy while breastfeeding and discuss the best treatment options for their situation.

Wegovy for Heart Patients: A Safe Choice?

Yes. The FDA has approved Wegovy in March 08, 2024 for reducing the risk of cardiovascular death, heart attack, and stroke in adults who have heart disease and are either obese or overweight. It should be used with a lower-calorie diet and more exercise. Wegovy is the first weight loss medication approved to prevent serious heart problems in people who are obese or overweight.

How Wegovy Affects Kidney Health

Wegovy may not be safe for individuals with kidney issues, as there have been reports of worsening of chronic renal failure and acute kidney injury in patients taking the drug. Some patients without pre-existing kidney problems have also experienced these issues, especially those who suffered from nausea, vomiting, or diarrhea that caused dehydration.

Case reports indicate a higher incidence of acute kidney injury (AKI) with Wegovy compared to other treatments, particularly those with pre-existing chronic kidney disease. The reports show a decline in kidney function following its administration.

Long-Term Use of Wegovy: Is It Sustainable?

Wegovy has demonstrated long-term safety in the SELECT trial, which involved 17,604 adults with obesity and established cardiovascular disease. The study found a 20% reduction in major adverse cardiovascular events (MACEs) over five years for those using Wegovy 2.4 mg compared to a placebo. While the medication was generally well-tolerated, around 17% of patients withdrew due to side effects, primarily nausea.

In another study that lasted about two years, the adverse gastrointestinal events of Wegovy were classified as mild to moderate. While there may be some GI effects, the weight loss benefits may outweigh them for many individuals.

In July 2024, Vibha Singhal, MD, MPH, DABOM, director of Pediatric Obesity, shared that Wegovy has shown significant benefits in weight loss and improving overall health and confidence in young patients. No unique health risks are associated explicitly with using Wegovy in adolescents compared to adults. The existing studies with 1-2 year follow-ups are showing good weight loss and improved metabolic health accompanied by lifestyle changes.

Managing High Blood Pressure While Taking Wegovy

Wegovy is considered safe for individuals with high blood pressure since it is indicated for overweight adults with at least one weight-related condition such as hypertension. A systematic review found that Wegovy treatment resulted in an average reduction of about 5 mmHg in systolic blood pressure and 2.5 mmHg in diastolic blood pressure among patients with obesity but without diabetes.

Can Non-Diabetics Safely Use Wegovy for Weight Loss?

Wegovy is safe for non-diabetic individuals seeking weight loss. A study involving 84 non-diabetic participants showed that after 12 weeks of treatment with various doses of Wegovy, participants experienced an average weight loss of approximately 13 lbs (6.15% of baseline weight) and a slight reduction in blood pressure. The most common side effects were mild gastrointestinal issues, resolved quickly, and no severe adverse reactions were reported.

Wegovy Contraindications

Wegovy Weight Loss Medication

Here are the contraindications for Wegovy:

    • Personal or family history of Medullary Thyroid Carcinoma.
    • Patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
    • Hypersensitivity reactions to semaglutide or any of Wegovy ingredients.
    • Pregnant or planning to become pregnant. Discontinue Wegovy at least 2 months before planning to become pregnant.

A healthcare provider should be informed about all medications being taken, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Did You Know?

Wegovy can change how people perceive sweet tastes. Research shows that it improves taste sensitivity and alters brain responses, potentially leading to a decreased desire for sugary foods in those with obesity.

Wegovy Side Effects

These are the most common side effects of Wegovy in adults or patients aged 12 years and older are:

    • Diarrhea
    • Nausea
    • Vomiting
    • Constipation
    • Headache
    • Fatigue
    • Dyspepsia
    • Dizziness
    • Abdominal pain
    • Abdominal distension
    • Eructation
    • Hypoglycemia (in patients with type 2 diabetes)
    • Flatulence
    • Gastroenteritis
    • Gastroesophageal reflux disease
    • Nasopharyngitis

Wegovy may also cause serious side effects, including:

    • Pancreatitis
    • Gallbladder problems:
    • Hypoglycemia
    • Kidney problems
    • Serious allergic reactions:
    • Vision changes
    • Increased heart rate
    • Depression or suicidal thoughts

Final Verdict: Is Wegovy Safe?

Wegovy is a safe and effective drug of choice for losing weight and reducing heart issues for obese or overweight people. However, seniors, especially those over 70, should use caution due to the risks of muscle and bone loss and possible nutrient deficiencies. The drug is also not safe during pregnancy and should be stopped at least two months before trying to conceive. There is also limited information on its safety while breastfeeding. Individuals with kidney problems should be cautious because of the potential for acute kidney injury. Wegovy has a good long-term safety profile. If you’re taking Wegovy or planning to start, it’s essential to talk to a healthcare provider about your personal risks and any contraindications is essential. Always consult your doctor for personalized safety information before starting or continuing Wegovy, especially if you have preexisting conditions.

Frequently Asked Questions

Wegovy is specifically approved for weight loss, while Ozempic is primarily approved for managing type 2 diabetes. Both medications contain semaglutide, but Wegovy is used at higher doses for weight management, which may enhance its effectiveness for that purpose. Individuals should ask their healthcare providers to determine which option is best for their needs.

Wegovy and Mounjaro have different approved indications. Wegovy is specifically for weight management, while Mounjaro is approved to treat type 2 diabetes. Their mechanisms, dosing, and approval statuses vary, so it’s essential to consult a healthcare provider for advice on which drug is more suitable for individual needs. Mounjaro contains tirzepatide, a different active ingredient than Wegovy’s semaglutide. Tirzepatide mimics two gut hormones (GLP-1 and GIP), which may result in greater weight loss for some people.

Both Zepbound and Wegovy are considered safe for weight loss. However, while they share common side effects like nausea and diarrhea, Zepbound is associated with a broader range of potential side effects, including dizziness, abdominal distension, hypoglycemia, and flatulence. Consult a medical personnel to determine which medication is safer and more suitable based on individual health status and medical history.

Wegovy and Saxenda are both effective medications for weight management, but they have different active ingredients and dosing schedules. Wegovy (semaglutide) is typically more effective, showing significant weight loss in clinical trials than Saxenda (liraglutide). However, choosing between the two drugs may depend on individual health needs, side effects, and cost considerations. It’s best to consult a healthcare provider to determine which option suits a person’s situation.

Both Wegovy and Phentermine are prescribed for weight loss management but Wegovy is generally considered safer for long-term use, as it is approved for chronic weight management. Also, Wegovy has fewer side effects, while Phentermine can cause more, such as insomnia, dry mouth, and restlessness. Phentermine is also a controlled substance due to the risk of dependency.

Wegovy and Contrave are safe options for weight loss. However, Wegovy is safer for those 12 years old and above since Contrave is for adults only. Individuals with uncontrolled hypertension, seizures, bulimia, or anorexia nervosa should avoid Contrave. Both medications list suicidal ideation as a potential side effect, though Contrave carries a higher risk of hallucinations and psychosis.

There aren’t any direct interactions between Wegovy and alcohol but a doctor might recommend limiting or avoiding alcohol during the treatment. This is because alcohol could potentially worsen Wegovy’s side effects like dizziness, headache, nausea, or vomiting. Also, reducing alcohol intake generally supports weight loss efforts. Always consult a physician regarding alcohol consumption during Wegovy treatment.

There is no specific interaction between Wegovy and Levothyroxine, which is used to treat thyroid hormone deficiency. However, as with any medication, it’s always best to consult a healthcare provider to discuss potential interactions or concerns for any medications taken during Wegovy treatment. Wegovy delays gastric emptying, possibly affecting other drugs’ absorption.

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