Saxenda is a GLP-1 receptor agonist (daily injection) used for Chronic weight management (adults + adolescents 12+).
Mechanism of action
Last Revised — by Dr. Jane Novak, MD, MPH
SCALE Obesity and Prediabetes (phase 3)
- • Liraglutide 3.0 mg daily + lifestyle vs placebo + lifestyle in adults with BMI ≥30 or ≥27 + comorbidity.
- • ~63% of treated patients reached ≥5% weight loss; ~33% reached ≥10%.
- • GI side effects (nausea 39%) were the most common discontinuation cause.
Source: A Randomized, Controlled Trial of 3.0 mg of Liraglutide in Weight Management — NEJM, 2015
Weight-loss trajectory · SCALE Obesity
Mean change in body weight over the 52-week trial.
What the evidence supports — Saxenda
Editorial grades summarizing study quality and convergence. How we grade.
| Claim | Grade | Basis |
|---|---|---|
Produces ~8% mean body-weight reduction at 56 weeks Source: NEJM, 2015 SCALE Obesity and Prediabetes RCT (n=3,731) | AStrong evidence | SCALE Obesity and Prediabetes RCT (n=3,731) |
FDA-approved for chronic weight management in adults and adolescents 12-17 Source: accessdata.fda.gov FDA labeling expansion for adolescents in 2020 based on dedicated trial | AStrong evidence | FDA labeling expansion for adolescents in 2020 based on dedicated trial |
Reduces progression from prediabetes to T2D SCALE Obesity sub-analysis at 3 years showed delayed onset of T2D | AStrong evidence | SCALE Obesity sub-analysis at 3 years showed delayed onset of T2D |
Outperforms semaglutide or tirzepatide on weight-loss magnitude Head-to-head class data: Saxenda 8% < semaglutide 14.9% < tirzepatide 22.5% | FNo evidence | Head-to-head class data: Saxenda 8% < semaglutide 14.9% < tirzepatide 22.5% |
Saxenda dose-titration ladder
Daily subcutaneous injection. Weekly step-ups for the first 5 weeks; weight-loss efficacy lives at the 3.0 mg maintenance dose.
Weeks 1–1
0.6 mg
Starter — tolerance building
Weeks 2–2
1.2 mg
Step 2
Weeks 3–3
1.8 mg
Step 3
Weeks 4–4
2.4 mg
Step 4
Weeks 5–56
3.0 mg
Maintenance dose — full weight-loss effect
Target dose
Source: Saxenda prescribing information
Monthly cost in the US
What Saxenda costs by payment path
Real out-of-pocket varies. Cash list price is what the pharmacy bills without insurance. Commercial copay assumes a tier-3 specialty plan. Savings-card numbers come from manufacturer programs.
$1,349/mo
What you pay at the pharmacy with no insurance, no coupons.
$25–$150/mo
Typical tier-3 specialty copay if your plan covers GLP-1s for your indication. Coverage is uneven.
$25–$25/mo
Commercially insured — $25/mo for 24 months. Uninsured: $200 off coupon. Not for Medicare/Medicaid.
Prices verified against manufacturer pages and FDB pharmacy data. Last reviewed: 2026. Affordability programs change; verify eligibility directly with the manufacturer before assuming you qualify.
What patients reported on Saxenda
Patient-reported outcomes from the SCALE Obesity PRO substudy substudy, plus the Drugs.com community satisfaction rating. These are aggregate signals, not individual testimonials.
Treatment satisfaction
+4.2
IWQOL-Lite score improvement vs placebo at week 56
Lost ≥5% weight
63%
Share of participants reaching the ≥5% threshold
Lost ≥10% weight
33%
Share of participants reaching the ≥10% threshold
Stayed on therapy at 1yr
~72%
Trial retention; daily injection lowers real-world adherence
Drugs.com community rating from 528 verified user reviews. View on Drugs.com →
Source: SCALE Obesity PRO substudy + Drugs.com community rating accessed 2026.
This is general drug information, not medical advice. Talk to a licensed clinician before starting, stopping, or switching medication.
FDA supply status
AvailableReason: No supply disruption reported
Last verified May 15, 2026. Source: FDA Drug Shortage Database.
Why is Saxenda prescribed?
Saxenda is FDA-approved to treat:
- Chronic weight management (adults + adolescents 12+)
RxNorm Code: 1599538
More on Saxenda
Reader reviews
Verified user experiences with Saxenda. Reviews are moderated before publishing.
No user reviews yet
Be the first to share what worked — side effects, titration experience, dosing, weight-loss timeline. The form below takes ~2 minutes.
Sources & further reading
All clinical claims on this page are sourced from the FDA prescribing information and peer-reviewed literature. Verify the most current label before clinical decisions.
“Saxenda is the daily-injection option in a class that has otherwise moved to weekly dosing. The 8% mean weight loss is real but materially lower than newer GLP-1s — the right answer for patients who specifically need a shorter half-life or who started on Saxenda before newer drugs existed.”
Side-effect timeline
peaks fade
Typical 16-week titration schedule. Individual experience varies — track yours with the printable tracker.
- 1
Wk 1-2
First injection
- NauseaModerate
- FatigueModerate
- BloatingMild
Peak nausea — eat small protein-forward meals; hydrate.
- 2
Wk 3-4
Body adapting
- NauseaMild
- ConstipationModerate
- RefluxMild
Constipation climbs as GI motility slows. Add fiber + magnesium.
- 3
Wk 5-8
Dose escalation #1
- NauseaModerate
- FatigueMild
- DiarrheaMild
Symptoms re-spike for ~7 days after each escalation.
- 4
Wk 9-12
Settling in
- NauseaMild
- RefluxMild
GI complaints meaningfully fade. Weight loss accelerates.
- 5
Wk 13-16
Maintenance ramp
- Mild fatigueMild
- Hair sheddingMild
Hair shedding from rapid weight loss may appear (resolves by month 6).
- 6
Wk 17+
Maintenance
- Generally well-toleratedNone
Most side effects resolved. Watch for gallbladder symptoms long-term.
Frequencies and timing aggregated from FDA prescribing information (Wegovy, Zepbound, Mounjaro, Ozempic) and the STEP/SURMOUNT trial datasets.
Saxenda price by dose strength
Cash, insured, and manufacturer-discount prices across 2026. Refreshed monthly from published provider rate cards.
| Dose | Supply | Retail (FDA list)Cash, no coupons | Cash + couponGoodRx / direct-to-patient | With insuranceTypical commercial copay | Mfr savings cardEligibility required |
|---|---|---|---|---|---|
| 0.6 mg | 30-day pen | $1349 | $1100 | $50 | $25 |
| 1.2 mg | 30-day pen | $1349 | $1100 | $50 | $25 |
| 1.8 mg | 30-day pen | $1349 | $1100 | $50 | $25 |
| 2.4 mg | 30-day pen | $1349 | $1100 | $50 | $25 |
| 3.0 mg | 30-day pen | $1349 | $1100 | $50 | $25 |
Prices are illustrative. Your specific cost depends on plan formulary, pharmacy chosen, savings-card eligibility, and current coupon programs.
Saxenda side effects by week
Percentage of patients reporting each symptom at each week bucket. Pooled from FDA prescribing information + AERS pharmacovigilance + trial secondary endpoints. Individual experience varies.
| Symptom | Wk 1-2 | Wk 3-4 | Wk 5-8 | Wk 9-12 | Wk 13-24 | Wk 24+ |
|---|---|---|---|---|---|---|
| NauseaSCALE + label | 39% | 28% | 18% | 12% | 8% | 5% |
| DiarrheaSCALE | 21% | 17% | 12% | 9% | 6% | 4% |
| ConstipationSCALE | 19% | 18% | 14% | 10% | 7% | 5% |
| VomitingSCALE | 16% | 14% | 9% | 6% | 4% | 2% |
| Injection-site reactionSCALE | 13% | 10% | 7% | 5% | 4% | 3% |
| HeadacheSCALE | 14% | 12% | 9% | 7% | 5% | 4% |
Color coding: red ≥20%, amber 10-19%, brand 3-9%, faint <3%. — indicates not tracked at that interval.
Saxenda content history· 1 change
2026-05-31Major updateby Jane Novak, MD, MPH
Initial Saxenda content shipped: evidence-graded claims, pivotal SCALE trial card, daily dose ladder, pricing table, sub-section pages.
Where to get Saxenda
Telehealth providers + manufacturer programs that prescribe or supply Saxenda. Editorial fit notes on each.
Insurance-friendly telehealth
Ro
Largest US weight-loss telehealth; PA + appeals support
Best for: Insurance-friendly with strong PA filing infrastructure
Affiliate
Manufacturer savings programs
NovoCare
Novo Nordisk savings cards + patient assistance (Wegovy, Ozempic, Saxenda)
Best for: Income-qualified uninsured Novo Nordisk drugs
Direct
Pharmacy discount platforms
GoodRx
Free pharmacy coupons; 10-30% off brand cash prices
Best for: Off-formulary backup when nothing else works
Direct
Pharmacy discount platforms
SingleCare
Pharmacy discount card; competitive with GoodRx
Best for: Alternative discount card for price comparison
Direct
Patient advocacy + education
Obesity Action Coalition
National patient advocacy organization; neutral resource directory
Best for: Education + advocacy + community
Direct
Editorial selection. "Direct" links go to the company’s homepage — we are not yet an affiliate partner with them and earn no commission on those signups. "Affiliate" links route through our /go redirect with commission tracking.
Common questions readers ask
- Can GLP-1 cause thyroid cancer?
- The boxed warning is based on rodent studies showing medullary thyroid carcinoma (MTC) in mice and rats. No human cases have been attributed to GLP-1 use despite 10+ years post-approval surveillance. Full evidence-graded answer
- Do GLP-1 medications affect mood or depression?
- Mixed evidence. The FDA label has a precaution but no boxed warning. Some patients report improved mood (likely from weight loss + glycemic control); a smaller subset reports increased anxiety or low mood, especially in early weeks. Pre-existing depression history is a flag for closer monitoring. Full evidence-graded answer
- How do you store GLP-1 pens?
- Refrigerate unopened pens at 36-46°F (2-8°C) until first use. Once started, room temperature ≤86°F (30°C) is fine for up to 28 days. Never freeze; never store in direct sunlight; do not store in checked luggage. Full evidence-graded answer
- How do you inject a GLP-1 safely?
- Rotate sites between abdomen (≥2 inches from navel), front of thigh, and back of upper arm. Inject at room temperature (cold pens sting). Pinch a fold of skin, insert at 90°, hold 6 seconds after the click, withdraw straight. Dispose in a sharps container. Full evidence-graded answer
- How does Wegovy compare to Saxenda?
- Both are GLP-1 agonists from Novo Nordisk. Wegovy (semaglutide, weekly) produces ~15% mean weight loss; Saxenda (liraglutide, daily) produces ~6-8%. Wegovy is also cheaper per kg-lost, more convenient, and has cardiovascular outcome data (SELECT trial). Saxenda was first approved for adolescents (2020); Wegovy followed in 2022 — both are available for ages 12-17. Full evidence-graded answer
- Can teenagers take GLP-1 medications?
- Yes — Wegovy is FDA-approved for ages 12+ with BMI ≥95th percentile for age. Saxenda is approved 12+ with BMI ≥30 kg/m² equivalent. Zepbound is approved 12+ (2024 label update). All require pediatric/adolescent medicine specialist oversight. Full evidence-graded answer
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