GLP-1 receptor agonists are the gold standard for medically-supervised weight management. Two leading options are Saxenda (liraglutide) and Wegovy (semaglutide). While Saxenda vs Wegovy are effective for weight loss, they differ in mechanism, dosing, and results.
1️⃣ Mechanism of Action
| Feature | Saxenda | Wegovy |
|---|---|---|
| Active Ingredient | Liraglutide | Semaglutide |
| Hormone Target | GLP-1 receptor | GLP-1 receptor |
| Action | Increases insulin secretion, reduces appetite | Increases insulin secretion, reduces appetite, slows gastric emptying more effectively |
| Weekly Dosing | Daily injection | Weekly injection |
2️⃣ Efficacy & Clinical Results
- Saxenda: Average weight loss of 5–8% over 56 weeks in clinical trials
- Wegovy: Average weight loss of 15–20% over 68 weeks (STEP trials)
📖 Sources: Saxenda Clinical Trials, Wegovy STEP Trials
3️⃣ Dosing & Administration
| Drug | Dose Schedule |
|---|---|
| Saxenda | Daily subcutaneous injection, starting 0.6 mg and titrating up to 3 mg |
| Wegovy | Weekly subcutaneous injection, starting 0.25 mg and titrating up to 2.4 mg |
Tip: Gradual titration reduces GI side effects like nausea and diarrhea.
4️⃣ Side Effects & Safety
Both drugs share common GLP-1 side effects:
- Nausea, vomiting, diarrhea
- Constipation
- Reduced appetite
- Mild abdominal discomfort
⚠️ Start with lower doses to minimize side effects.
5️⃣ Which One Should You Choose?
- Saxenda: Ideal for moderate weight loss, daily injection preference, and slightly lower cost
- Wegovy: Best for maximum weight reduction, weekly convenience, and long-term management
⚠️ Both treatments require medical supervision and lifestyle modifications for optimal results.
6️⃣ Key Takeaways Saxenda vs Wegovy
- Both Saxenda and Wegovy are effective GLP-1 treatments for weight management
- Wegovy generally delivers higher average weight loss
- Saxenda may be preferred for patients who prefer a daily routine or lower starting dose