Zepbound vs Saxenda: Full Comparison (2026)
How does Zepbound (Tirzepatide) compare to Saxenda (Liraglutide)? We break down the weight loss data, pricing, side effects, and who each medication is best suited for.
Zepbound (Tirzepatide, Dual GLP-1/GIP receptor agonist) and Saxenda (Liraglutide, GLP-1 receptor agonist) work through different mechanisms. Zepbound is FDA-approved for chronic weight management with 20-22% of body weight average weight loss at $1,060/mo. Saxenda is approved for chronic weight management with 5-8% of body weight average weight loss at $1,350/mo.
Side-by-Side Comparison
| Feature | Zepbound | Saxenda |
|---|---|---|
| Active Ingredient | Tirzepatide | Liraglutide |
| Mechanism | Dual GLP-1/GIP receptor agonist | GLP-1 receptor agonist |
| FDA Approved For | Chronic weight management | Chronic weight management |
| Doses | 2.5mg to 15mg (weekly injection) | 0.6mg to 3mg (daily injection) |
| Administration | Weekly subcutaneous injection | Daily subcutaneous injection |
| Avg. Weight Loss | 20-22% of body weight | 5-8% of body weight |
| Monthly Price | $1,060 | $1,350 |
| Oral Available | No | No |
| Year Approved | 2023 | 2014 |
Prices reflect typical self-pay costs without insurance. Actual costs vary by pharmacy, location, and insurance plan. Last updated March 2026.
Which Produces More Weight Loss?
Based on clinical data, Zepbound produces more weight loss on average (20-22% of body weight) compared to Saxenda (5-8% of body weight). Zepbound uses Tirzepatide (Dual GLP-1/GIP receptor agonist), while Saxenda uses Liraglutide (GLP-1 receptor agonist), which may account for the difference.
FDA-approved for chronic weight management. Same active ingredient as Mounjaro (tirzepatide). Shows the highest average weight loss of any currently approved GLP-1 medication.
One of the first FDA-approved GLP-1 medications for weight loss. Requires daily injections (vs weekly for newer options). Generally being replaced by more effective newer medications.
Which Costs Less?
At list price, Zepbound is the more affordable option at $1,060/month compared to $1,350/month for Saxenda. However, actual out-of-pocket costs depend heavily on your insurance plan. Zepbound with insurance: Varies by plan. Saxenda with insurance: Varies widely.
LillyDirect program for eligible patients
Manufacturer savings card available
Side Effects Comparison
Both Zepbound (Dual GLP-1/GIP receptor agonist) and Saxenda (GLP-1 receptor agonist) share similar gastrointestinal side effects, which are the most commonly reported:
- Nausea (most common for both medications)
- Diarrhea and vomiting
- Constipation
- Abdominal pain
- Decreased appetite
- Headache, fatigue, dizziness (less common)
Serious but rare side effects for both include pancreatitis, gallbladder problems, and kidney issues. Both carry warnings about medullary thyroid carcinoma risk based on animal studies. Always discuss your full medical history with your doctor before starting either medication.
Which Should You Choose?
The best choice depends on your diagnosis, insurance coverage, weight loss goals, and personal preferences. Here is our general guidance:
- -Your primary goal is weight loss (FDA-approved indication)
- -You want the dual GLP-1/GIP mechanism for potentially greater efficacy
- -You prefer the convenience of once-weekly dosing
- -Your primary goal is weight loss (FDA-approved indication)
- -You prefer a daily dosing routine
- -Your doctor recommends Liraglutide based on your health profile
Find the Best GLP-1 Provider for You
Compare verified telehealth programs that prescribe Zepbound, Saxenda, and other FDA-approved GLP-1 medications.
Frequently Asked Questions
Can I switch from Zepbound to Saxenda?
Switching between Zepbound and Saxenda is possible but requires medical supervision since they contain different active ingredients (Tirzepatide vs Liraglutide). Your doctor will determine the appropriate starting dose and titration schedule for the new medication.
Which is better for weight loss: Zepbound or Saxenda?
Clinical data suggests Zepbound produces more weight loss on average (20-22% of body weight) compared to Saxenda (5-8% of body weight). However, individual results vary significantly based on dosing, diet, exercise, and metabolic factors.
Is Zepbound cheaper than Saxenda?
At list price, Zepbound ($1,060/month) is less expensive than Saxenda ($1,350/month). With insurance, costs vary significantly. Zepbound: Varies by plan. Saxenda: Varies widely.
Do Zepbound and Saxenda have the same side effects?
Both medications share similar gastrointestinal side effects (nausea, diarrhea, vomiting, constipation) as these are common to GLP-1 receptor agonists. However, since they contain different active ingredients, there may be differences in frequency and severity. Discuss your medical history with your doctor to determine which has a better safety profile for you.
Does insurance cover Zepbound and Saxenda?
Coverage varies by plan. Zepbound is FDA-approved for chronic weight management — insurance coverage is typically better for on-label use. Saxenda is FDA-approved for chronic weight management. Check with your specific insurance plan and ask your doctor about prior authorization requirements.