Saxenda vs. Victoza

See how Saxenda and Victoza compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Saxenda and Victoza both contain liraglutide, but Saxenda is FDA-approved for chronic weight management while Victoza is approved for type 2 diabetes and cardiovascular risk reduction.

  • Saxenda's maintenance dose of 3 mg daily is higher than Victoza's 1.8 mg maximum, because effective appetite suppression requires more liraglutide than glycemic control does.

  • Both drugs are once-daily injections with the same boxed warning for thyroid C-cell tumors, so using Victoza for weight loss instead of Saxenda is considered off-label.

Saxenda vs. Victoza Drug Summary

Saxenda

Saxenda is a GLP-1 receptor agonist approved for chronic weight management in adults and adolescents 12 and older with obesity or overweight plus a weight-related condition. It is injected once daily under the skin, with the dose increased gradually over four weeks up to a 3 mg maintenance dose.

Victoza

Victoza is a GLP-1 receptor agonist approved to improve blood sugar control in people with type 2 diabetes, including children 10 and older, and to lower cardiovascular risk in adults with diabetes and heart disease. It is injected once daily under the skin, with the dose increased over two weeks up to a 1.8 mg maintenance dose.

Saxenda vs. Victoza Side Effects

Saxenda

Most common
nausea (up to 39.3%)
diarrhea (up to 20.9%)
constipation (up to 19.4%)
vomiting (up to 15.7%)

Victoza

Most common
nausea (≥5%)
diarrhea (up to 11.7%)
constipation (≥5%)
vomiting (≥5%)

Saxenda vs. Victoza Dosage

Saxenda

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 0.6 mg once daily Week 1
Maximum dose 3 mg once daily Week 5 onward
Dose changes 4 increases Every week

Victoza

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 0.6 mg once daily Week 1
Maximum dose 1.8 mg once daily Week 3 onward
Dose changes 2 increases Every week

Saxenda vs. Victoza Indications

Saxenda

Saxenda is approved for long-term weight management in adults with obesity, or overweight plus a condition like high blood pressure or type 2 diabetes. It is also approved for adolescents 12 to 17 with obesity, making it one of the few GLP-1 weight-loss drugs available for teens. Saxenda is not approved to manage diabetes on its own.

  • Adults with obesity (BMI ≥30)

  • Adults overweight with a weight-related condition

  • Adolescents 12-17 with obesity

  • Not approved for diabetes management

Victoza

Victoza is approved as an add-on to diet and exercise to improve blood sugar control in adults and children 10 and older with type 2 diabetes. It is also approved to reduce the risk of heart attack, stroke, or cardiovascular death in adults with type 2 diabetes and known heart disease. Using Victoza for weight loss instead of diabetes care is considered off-label.

  • Adults with type 2 diabetes

  • Children 10 and older with type 2 diabetes

  • Adults with type 2 diabetes and cardiovascular disease

  • Not approved specifically for weight loss

Saxenda vs. Victoza Pros and Cons

Saxenda

Saxenda and Victoza share the same active ingredient, liraglutide, but are FDA-approved for different goals: Saxenda for weight management, Victoza for diabetes care. Because Saxenda's maintenance dose is higher, GI side effects tend to be somewhat more frequent, and its titration schedule runs about two weeks longer than Victoza's.

Pros

  • FDA-approved specifically for chronic weight management, not just diabetes

  • Approved for adolescents 12-17 with obesity

  • Higher maintenance dose (3 mg) targets appetite and weight more directly

  • Can be used by people without diabetes

Cons

  • Not approved to manage blood sugar or reduce cardiovascular risk

  • Higher dose is linked to more frequent nausea and diarrhea

  • Requires a longer four-week titration before reaching full dose

Victoza

Victoza is approved for treating type 2 diabetes and reducing cardiovascular risk, not for weight loss, even though its active ingredient is identical to Saxenda's. Its titration is shorter and its top dose is lower, which may mean fewer GI side effects for some patients, but also less weight loss if used off-label for that purpose.

Pros

  • FDA-approved to improve blood sugar control in type 2 diabetes

  • Also approved to lower cardiovascular risk in adults with heart disease

  • Approved for children as young as 10 with type 2 diabetes

  • Shorter titration schedule to reach maintenance dose

Cons

  • Not FDA-approved for weight loss, so that use is off-label

  • No pediatric obesity indication

  • Lower maximum dose (1.8 mg) may produce less weight loss than Saxenda's 3 mg dose

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