Medications

Zepbound vs Saxenda: Weight Loss Comparison

6 min read4 de abril de 2026Por GLPSpot Editorial Team
Zepbound vs Saxenda: Weight Loss Comparison

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Zepbound and Saxenda are both FDA-approved for weight loss. They use different drugs and very different dosing schedules.

Quick Comparison

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Zepbound Saxenda
Active drug Tirzepatide Liraglutide
Drug class Dual GIP/GLP-1 agonist GLP-1 agonist
FDA approval Weight management Weight management
Injection frequency Once weekly Once daily
Dose range 2.5 mg – 15 mg 0.6 mg – 3 mg
Maker Eli Lilly Novo Nordisk

How They Work

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Zepbound mimics two hormones (GLP-1 and GIP) that signal fullness and slow digestion.

Saxenda mimics one hormone (GLP-1) that does the same thing.

Weight Loss Results

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  • Zepbound: ~21% body weight loss on average at max dose
  • Saxenda: ~5-8% body weight loss on average at max dose

Zepbound produces significantly more weight loss. The dual-hormone approach makes a big difference.

Side Effects

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Both cause similar GLP-1 side effects:

  • Nausea (most common)
  • Diarrhea or constipation
  • Decreased appetite
  • Stomach pain
  • Fatigue
  • Headache

Side effects are worst when you start and after dose increases. Most people adjust within a few weeks.

Convenience

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  • Zepbound: One injection per week
  • Saxenda: One injection per day

Weekly is much more convenient for most people.

Cost

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Zepbound: ~$1,060/month Saxenda: ~$1,300-1,400/month

Zepbound is cheaper at list price and produces more weight loss. But your insurance will decide which you can actually get.

Who Should Choose Zepbound?

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  • You want the strongest weight loss results
  • You want weekly injections
  • Your insurance covers it
  • You're starting fresh

Who Should Choose Saxenda?

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  • Your insurance covers it and not Zepbound
  • You've used it before and it works
  • You prefer daily dosing
  • You can't tolerate tirzepatide

Bottom Line

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Managing your GLP-1 medication is easier with the right tools:

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Zepbound is newer, weekly, cheaper, and produces much more weight loss. Saxenda is older, daily, and still works for many people.

Talk to your doctor about which makes sense for your situation.

Work with your healthcare provider to determine which medication is right for you. Individual results and experiences vary.

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