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GLP-1 medications have transformed the way weight loss is approached. Drugs like Ozempic, Wegovy, and Saxenda have helped many people achieve significant and sustained weight loss. But these medications are not for everyone, and they are not a quick fix.
If you are considering GLP-1 weight loss treatment in Canada, it is important to understand what these medications are, who they are appropriate for, and how to determine whether they are right for you. This article provides a comprehensive guide to help you make an informed decision.
GLP-1 receptor agonists are a class of medications that mimic the action of a natural hormone called glucagon-like peptide-1 (GLP-1). This hormone plays a key role in regulating blood sugar and appetite.
These medications work by:
Together, these effects help people eat less and feel satisfied with smaller portions, leading to gradual and sustained weight loss.
Several GLP-1 medications are available in Canada. The most commonly discussed ones for weight management include:
Wegovy is approved in Canada for weight management in adults with obesity (BMI of 30 or higher) or overweight (BMI of 27 or higher) with at least one weight-related condition, such as high blood pressure, type 2 diabetes, or high cholesterol. It is given as a once-weekly injection.
Saxenda is approved in Canada for weight management in adults with obesity or overweight with at least one weight-related condition. It is given as a once-daily injection.
Ozempic is approved in Canada for the treatment of type 2 diabetes. While it is associated with weight loss, it is not approved for weight management on its own. Using it for weight loss without type 2 diabetes would be an off-label use.
Mounjaro is a newer medication that targets both GLP-1 and GIP receptors. It is approved in Canada for type 2 diabetes and is associated with significant weight loss. Its use for weight management is being studied.
GLP-1 weight loss treatment is generally considered appropriate for adults who:
In addition to meeting these criteria, a person should be committed to making long-term lifestyle changes, including a healthy diet and regular physical activity. These medications work best when combined with lifestyle changes.
Determining whether you are a candidate for GLP-1 treatment involves several steps. Here is what to consider:
Your body mass index (BMI) is a measure of body fat based on height and weight. You can calculate it by dividing your weight in kilograms by your height in meters squared. A BMI of 30 or higher indicates obesity, while a BMI of 27 to 29.9 indicates overweight.
If your BMI is between 27 and 29.9, you may still be a candidate if you have a weight-related condition. These include high blood pressure, type 2 diabetes, high cholesterol, and sleep apnea.
Have you tried to lose weight through diet and exercise and not achieved lasting results? GLP-1 medications are generally considered for people who have not been able to achieve and maintain weight loss through lifestyle changes alone.
Are you prepared to make long-term lifestyle changes? GLP-1 treatment is most effective when combined with a healthy diet and regular physical activity. It is not a substitute for these changes.
If you and your healthcare provider decide that GLP-1 treatment is right for you, here is what you can expect:
Weight loss with GLP-1 medications is gradual. Most people lose weight steadily over several months. In clinical trials, people have lost an average of 5% to 15% of their body weight over 6 to 12 months.
These medications are given as injections. Wegovy and Ozempic are taken once weekly, while Saxenda is taken once daily. Your healthcare provider will show you how to use the injection pen.
Your dose will typically be started low and increased gradually to reduce side effects. This is called dose titration.
The most common side effects are digestive and include nausea, vomiting, diarrhea, constipation, and abdominal pain. These are most common when starting the medication or increasing the dose, and they often improve over time.
Like all medications, GLP-1 receptor agonists can cause side effects. The most common ones include:
More serious side effects can include:
You should discuss all potential risks with your healthcare provider before starting treatment.
GLP-1 medications are not suitable for everyone. You should not take them if you:
Your healthcare provider will review your medical history to determine whether these medications are safe for you.
GLP-1 medications are prescription-only in Canada. To obtain them, you must first see a healthcare provider. This can be done in person or through a telehealth service.
During the consultation, the provider will:
If a medication is prescribed, you can fill the prescription at a licensed pharmacy, either in person or online.
GLP-1 treatment should always be undertaken under medical supervision. These are powerful medications that require careful monitoring. Your healthcare provider will monitor your progress, adjust your dose, and watch for side effects.
It is also important to obtain these medications from a licensed Canadian pharmacy. Unregulated online sellers may offer counterfeit or substandard products that are unsafe.
GLP-1 medications work best when combined with healthy lifestyle changes. These include:
These changes not only support weight loss but also improve overall health.
Health Canada regulates all medications sold in Canada, including GLP-1 receptor agonists. It reviews the safety, efficacy, and quality of drugs before they are approved for sale. It also issues product monographs, which provide the official, approved information about how a drug should be used.
The Health Canada product monographs for Wegovy, Saxenda, Ozempic, and Mounjaro are important resources for healthcare providers and patients.
GLP-1 weight loss treatment can be highly effective for the right candidates. It may be right for you if you have obesity or overweight with a weight-related condition, and you have not achieved lasting results with lifestyle changes alone.
However, these are prescription medications that require medical supervision. The best way to determine whether GLP-1 treatment is right for you is to speak with a healthcare provider, who can assess your health, discuss your options, and help you make an informed decision.
This article is for informational purposes only and is not a substitute for professional medical advice. Always consult a licensed healthcare provider before starting any new medication.
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