How does Wegovy work for weight loss?
Wegovy works by targeting an area in the brain that helps to regulate appetite and how much you eat. It can also make you feel fuller for longer. It closely mimics a natural hormone in the body called incretin, which is made primarily in our digestive tract.
What is it?
Wegovy (semaglutide) is a once-weekly subcutaneous (under the skin) glucagon-like peptide-1 (GLP-1) receptor injection. It is approved by the FDA:
- To reduce the risk of major adverse cardiovascular events (cardiovascular death, non-fatal heart attack, or non-fatal stroke) in adults with established heart disease and either obesity or overweight.
- To reduce excess body weight and maintain weight loss in people 12 years of age and older with obesity.
- To reduce excess body weight and maintain weight reduction over the long-term in adults who are overweight and have at least one weight-related medical condition like high blood pressure, type 2 diabetes, or high cholesterol.
Wegovy is used in addition to a reduced calorie diet and increased physical activity.
Wegovy contains the active ingredient semaglutide, a GLP-1 receptor agonist medicine. Wegovy should not be used with other semaglutide-containing products (such as Ozempic or Rybelsus) or other GLP-1 receptor agonist medicines.
It is not known if Wegovy is safe and effective for use in children under 12 years of age.
How does Wegovy affect appetite?
Wegovy (semaglutide) reduces appetite by mimicking the action of a natural hormone called glucagon-like peptide-1 (GLP-1). GLP-1 is an appetite hormone made primarily in your digestive tract that targets areas of the brain to regulate appetite, especially after eating. It causes reduced appetite and the release of insulin.
Wegovy is classified as a human glucagon-like peptide-1 (GLP-1) receptor agonist and occupies the GLP-1 receptor in the brain that regulates appetite. Wegovy slows how quickly the stomach empties, which makes you feel fuller for longer. It also enhances the production of insulin.
You will lose weight with Wegovy because you will typically eat less and feel fuller when you do eat. Wegovy treatment is recommended for long-term use if it’s effective for you, but be sure to use it in addition to a healthy diet and exercise to help promote weight loss.
- With continued use, Wegovy has been shown in studies to help people lose weight and keep it off for over two years. Studies were conducted in adults with obesity or with overweight and at least one weight-related comorbidity.
- On average, people lost about 15% of their weight (equal to about 35 lbs) vs. a 2.6% (6 lb) weight loss in the group that took a placebo (inactive) treatment after 2 years time.
- About 77% of patients taking Wegovy maintained their weight loss at 2 years.
This is not all the information you need to know about Wegovy (semaglutide) for safe and effective use and does not take the place of your doctor’s directions. Review the full product information and discuss this information and any questions you have with your doctor or other health care provider.
Related questions
- 6 Wegovy side effects you need to be aware of
- How do Ozempic, Mounjaro, Wegovy, Zepbound compare for weight loss?
- Wegovy vs Ozempic: Which is Right for You?
References
- Wegovy [prescribing information]. Bagsvaerd, Denmark. Novo Nordisk. Accessed Nov. 13, 2024 at https://www.novo-pi.com/wegovy.pdf
- Endocrine Society. Endocrine-related Organs and Hormones. January 24, 2022. [Accessed Nov 13, 2024]. Available from: https://www.endocrine.org/patient-engagement/endocrine-library/hormones-and-endocrine-function/endocrine-related-organs-and-hormones
- Food and Drug Administration (FDA). FDA Approves New Drug Treatment for Chronic Weight Management, First Since 2014. June 4, 2021. [Accessed Nov. 13, 2024]. Available from: https://www.fda.gov/news-events/press-announcements/fda-approves-new-drug-treatment-chronic-weight-management-first-2014
- Efficacy and Safety. Chronic Weight Management. Wegovy. NonoMedlink. Accessed Nov 13, 2024 at https://www.novomedlink.com/obesity/products/treatments/wegovy/efficacy-safety/chronic-weight-management.html#wegovy-and-sustained-weight-loss
Read next
How long to see weight loss results with Wegovy?
Weight loss may begin within the first 4 weeks of treatment with Wegovy, but the full effects of Wegovy may not be seen for several months or longer. In studies, after 68 weeks, 83% of people taking Wegovy lost 5% or more of their weight compared to 31% of people taking a placebo.
Continue reading
Do Ozempic, Wegovy, Mounjaro & Zepbound cause hair loss?
There’s no evidence that hair loss is a direct side effect of Ozempic, Wegovy, Mounjaro or Zepbound. Hair loss is more likely due to the stress of rapid weight loss on your body, which can lead to temporary shedding of hair over several months, a condition known as telogen effluvium. Continue reading
Can you get tirzepatide from a compounding pharmacy?
Some pharmacies or clinics may supply compounded versions of medicines like tirzepatide (Mounjaro, Zepbound) and semaglutide (Ozempic, Wegovy) to patients, but the FDA has issued safety warnings about this practice. Concerns have risen over active ingredients, side effects and labeling of these compounded products. Continue reading
See also:
Aimovig
Learn about Aimovig (erenumab-aooe) a once-monthly, injectable medication that can be ...
Botox
Botox is used cosmetically to reduce facial lines and wrinkles and for medical purposes for ...
Ozempic
Learn about Ozempic (semaglutide) for type 2 diabetes treatment, weight management, cardiovascular ...
Nurtec ODT
Nurtec ODT (rimegepant) is used to treat acute migraines and prevent episodic migraines, by ...
Depakote
Depakote is used to treat various types of seizure disorders. Learn about side effects ...
Topamax
Topamax (topiramate) is used to prevent seizures in adults and children and to prevent migraine ...
Emgality
Emgality (galcanezumab-gnlm) is a CGRP antagonist for the preventive treatment of migraine and for ...
Timolol
Timolol is used for angina, heart attack, high blood pressure, migraine, migraine prevention
Valproic acid
Valproic acid is used for bipolar disorder, cluster-tic syndrome, epilepsy, headache ...
Divalproex sodium
Divalproex sodium is used for bipolar disorder, borderline personality disorder, cyclothymic ...
Related medical questions
- How do Zepbound and Wegovy compare?
- Does Ozempic cause muscle loss and how to prevent it?
- Wegovy vs Mounjaro: Which works best for weight loss?
- Ozempic Face: What causes it and how to prevent it?
- How do you get Wegovy covered by insurance?
- When is the best time of day to take Wegovy?
- Do GLP-1 drugs like Ozempic or Wegovy affect bone density?
- What is the cost of Wegovy?
- Is Ozempic covered by Medicare and Medicaid?
- Does Wegovy make you pee a lot or urine smell?
- MariTide vs Wegovy or Zepbound: how do they compare?
- Is Wegovy covered by Medicare?
- Saxenda vs Wegovy: Which weight loss drug is right for you?
- Can Ozempic and Wegovy cause eye blindness?
- Can Wegovy or Ozempic be used for heart failure?
- Semaglutide and liraglutide for alcohol use disorder (AUD)
- Wegovy coupon card: Do I qualify and how much can I save?
- What options are there for weight loss medications?
- What's the buzz on Ozempic and Wegovy?
- How much does semaglutide cost?
- How does semaglutide work for weight loss?
- Where and how should Ozempic be injected?
- What foods should I eat or avoid when taking Rybelsus?
- How does Ozempic affect blood pressure?
- Liraglutide vs Semaglutide: How do they compare?
- How much weight can you lose with Rybelsus?
- Trulicity vs Ozempic: Which is right for you?
- Why does Ozempic cause a dry mouth or taste changes?
- How long does it take for Rybelsus to start working?
- Can I drink alcohol on Ozempic?
Drug information
Related support groups
- Wegovy (46 questions, 113 members)
- Semaglutide (34 questions, 52 members)
- Weight Loss (Obesity/Overweight) (852 questions, 1,512 members)
- Cardiovascular Risk Reduction (101 questions, 28 members)