Saxenda: primary use

Saxenda's active ingredient is liraglutide. It's an injectable for weight management, designed for adults with obesity or who are overweight with weight-related conditions like Type 2 diabetes or high blood pressure. Saxenda is Health Canada-approved for chronic weight management. It works best alongside a reduced-calorie diet and more exercise.

Ozempic: primary use

Ozempic contains semaglutide. Its main approval is for Type 2 diabetes in adults. It controls blood sugar and reduces the risk of major cardiovascular events like heart attacks and strokes. It's not Health Canada-approved for weight loss, but doctors often prescribe it off-label for weight loss in patients with diabetes.

Health Canada approval status

• Saxenda: approved for weight management in adults with a BMI of 27 or higher and at least one weight-related condition, or a BMI of 30 or higher.
• Ozempic: approved for Type 2 diabetes and cardiovascular risk reduction. Not approved for weight loss, though often prescribed off-label.

How both drugs work

Saxenda and Ozempic are both GLP-1 receptor agonists. They mimic glucagon-like peptide-1 (GLP-1), a hormone that regulates blood sugar and appetite.

• Saxenda: mimics GLP-1 to regulate appetite, helping you feel full sooner and longer, so you eat less.
• Ozempic: also mimics GLP-1. It boosts insulin secretion and slows gastric emptying. That dual action controls blood sugar and supports weight loss, useful for Type 2 diabetes and sometimes obesity.

Saxenda vs. Ozempic for weight loss

Both drugs produce weight loss, but at different rates. The choice depends on trial outcomes, off-label use, and your specific situation. Talk to a healthcare provider.

Clinical trial results

• Saxenda:
  • In a study of 769 participants, about half lost at least 5% of their body weight in six months.
  • About 18.3% lost at least 10% of their body weight.
• Ozempic:
  • In a trial of 2,000 adults with obesity, nearly 50% lost 15% of their body weight over 68 weeks.
  • Participants relying on lifestyle changes alone lost about 2.4% in the same period.

The data points to Ozempic (semaglutide) as more effective than Saxenda (liraglutide) for weight loss:

1. In a head-to-head randomized controlled trial comparing the two medications, Ozempic led to greater weight loss than Saxenda. Specifically, patients taking Ozempic lost about 6.5% more body weight compared to those taking Saxenda over a 52-week period.
2. Ozempic seems to be better tolerated than Saxenda, with fewer side effects and adverse events. In the comparative trial, 50% more people discontinued treatment due to side effects with Saxenda compared to Ozempic.
3. While both medications can lead to significant weight loss of around 6-8% after one year, studies have shown Ozempic to be more effective overall

Talk to your healthcare provider first

Before starting either drug:

1. Medical history: your provider will look at your history, current health, and other medications.
2. Side effects: knowing the side effect profile of each drug helps you decide. Both have side effects that might shift the decision.
3. Personal goals: discuss what you want to achieve and how each drug fits.

Monitoring side effects and adjusting doses

1. Common side effects: nausea, constipation, and abdominal pain. These usually ease over time.
2. Drug-specific:
   • Saxenda: may cause headaches and heartburn.
   • Ozempic: can cause diarrhea and vomiting.

1. Monitoring: keep a journal of side effects and share it with your provider at follow-ups.
2. Dose adjustments: if side effects are severe or won't ease up, your doctor may change the dose or switch you to another drug. Don't change your dose on your own.

Side effects of Saxenda and Ozempic

Common side effects

Both drugs share several common side effects:

• Nausea: common when starting either drug. Usually eases over time.
• Constipation: stay hydrated and eat fiber-rich foods to manage it.
• Abdominal pain: if it becomes severe, call your doctor.

Saxenda-specific:

• Headaches: can often be managed with over-the-counter pain relievers. See your doctor if they persist.
• Heartburn or acid reflux: avoid spicy or fatty foods.

Ozempic-specific:

• Diarrhea: stay hydrated and keep a balanced diet.
• Vomiting: often hits while your body is still adjusting.

Severe side effects

Both drugs carry risks for more serious problems:

• Gallbladder complications: both can reduce gallbladder contraction and slow gut motility, which can cause gallstones.
• Pancreatitis: inflammation of the pancreas, with intense abdominal pain, nausea, and vomiting.

Monitoring matters:

• Regular check-ups with your provider.
• Watch for severe abdominal pain, persistent nausea, or vomiting.
• For signs of pancreatitis or gallbladder problems, get urgent care.

How much do Saxenda and Ozempic cost?

Cost without insurance

Out-of-pocket monthly and yearly costs:

• Saxenda: $250 to $330 per month, $3,300 to $4,300 per year.
• Ozempic: $220 to $265 per month, $3,000 to $3,300 per year.

Prices vary by pharmacy. We usually recommend Costco Pharmacy.

Insurance coverage

Provincial insurance like OHIP doesn't cover either drug for weight loss in Canada. Private insurance through an employer may. Coverage details:

• Saxenda: coverage varies. Some plans cover it fully, some partially, some not at all. Check with your insurance.
• Ozempic: often covered for its primary use (Type 2 diabetes). For off-label weight loss, coverage is less consistent. Check if your plan covers off-label uses.

Dosage and administration

Using these drugs correctly is key to results and to limiting side effects. Details for each:

Saxenda: daily injection

1. Starting dose: 0.6 mg per day for the first week.
2. Increase weekly by 0.6 mg until you reach the target of 3.0 mg per day.
3. Inject in the abdomen, thigh, or upper arm.
4. Inject at the same time each day to keep levels steady.

Ozempic: weekly injection

Ozempic is injected less often than Saxenda:

1. Initial dose: 0.25 mg once a week for the first four weeks.
2. After four weeks, the dose goes up to 0.5 mg. Depending on your response, your doctor may move you to 1 mg or 2 mg.
3. Inject in the abdomen, thigh, or upper arm.
4. Inject on the same day each week. You can change the day, but keep at least a 48-hour gap between doses.

Which should you choose?

Both drugs work for weight loss, but the right one depends on your situation. Ozempic's once-weekly injection plus its diabetes benefits makes it appealing for people who want convenience and blood sugar control. Saxenda's daily injection makes it more focused on weight management, especially for people who don't have diabetes but are struggling with obesity.

Lifestyle, side effects, cost, and underlying health conditions all matter. Talk to a healthcare provider to match the right drug to your situation. The medication is one part. Diet and exercise are the rest.

Disclaimer: This blog post is intended for educational purposes only and should not be taken as medical advice. Always consult your healthcare provider for personal health concerns.