liraglutide
Saxenda (liraglutide 3 mg) is a once-daily GLP-1 receptor agonist injection approved for chronic weight management in adults and adolescents 12+ with obesity or overweight with weight-related conditions.
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Quick Reference

Saxenda (liraglutide 3 mg) is a once-daily GLP-1 receptor agonist injection approved for chronic weight management in adults and adolescents 12+ with obesity or overweight with weight-related conditions.
Saxenda (liraglutide) belongs to the GLP-1 Receptor Agonists class of medications. It was first approved by the FDA in 2014. This medication requires a prescription from a licensed healthcare provider.
This is a summary only. Always read the full prescribing information and consult your healthcare provider for personalized medical advice.
Saxenda is prescribed for the following conditions. Some uses are FDA-approved indications; others may be evidence-based off-label uses. Consult your healthcare provider for personalized guidance.

The following are general dosing guidelines only. Your actual dose should be determined by your healthcare provider based on your condition, renal/hepatic function, and other medications.
Start 0.6 mg subcutaneously once daily; increase by 0.6 mg weekly to the maintenance dose of 3 mg once daily. Discontinue if 4% body weight is not lost by 16 weeks.
Available Forms
Available Strengths


Always inform your healthcare provider and pharmacist about ALL medications you take, including prescriptions, OTC medicines, vitamins, and supplements.
Insulin / insulin secretagogues (sulfonylureas)
Liraglutide increases insulin secretion; concurrent use with insulin or sulfonylurea substantially increases hypoglycemia risk.
Management: Reduce or discontinue sulfonylurea or insulin when starting Saxenda; monitor glucose closely.
Other GLP-1 receptor agonists (semaglutide, dulaglutide, exenatide)
Pharmacological duplication — additive GI toxicity and hypoglycemia risk with no additional benefit.
Management: Contraindicated. Use only one GLP-1 agonist at a time.
Oral medications (levothyroxine, oral contraceptives)
Delayed gastric emptying may reduce absorption of orally administered drugs.
Management: Take time-sensitive oral drugs at a consistent time relative to Saxenda injection; monitor drug efficacy.
Warfarin
Delayed gastric emptying may alter warfarin absorption kinetics, affecting INR stability.
Management: Monitor INR when initiating or adjusting liraglutide dose.
Alcohol
Alcohol may worsen GI side effects (nausea, vomiting) and risk hypoglycemia in patients on concurrent antidiabetic therapy.
Management: Advise patients to limit alcohol intake.
Boxed warning: risk of thyroid C-cell tumors; contraindicated with personal/family history of medullary thyroid carcinoma or MEN 2.
Risk of acute pancreatitis.
May cause gallbladder problems.
Not for use with other GLP-1 agonists or insulin for weight loss.

Liraglutide is a GLP-1 receptor agonist that increases glucose-dependent insulin secretion, slows gastric emptying, and acts on appetite centers in the brain to reduce hunger and energy intake.
Absorption
Peak 8–12 hours after SC injection
Half-Life
Approximately 13 hours
Metabolism
Endogenous proteolysis (like large proteins)
Excretion
Metabolized; minimal intact renal excretion

Many medications pass into breast milk in varying amounts. Before using Saxendawhile breastfeeding, discuss the benefits and risks with your healthcare provider or pharmacist — they can weigh your dose, your infant's age, and available lactation safety data to find the safest option for you and your baby.

Refrigerate at 2–8°C before first use; after first use, store up to 30°C or refrigerated for 30 days.
Both are GLP-1 agonists for weight management. Wegovy (semaglutide) is once weekly and produced greater average weight loss in trials; Saxenda (liraglutide) is once daily. Your prescriber selects based on tolerance, insurance, and goals.
In trials, adults lost roughly 5–10% of body weight on average over a year when combined with diet and exercise. Individual results vary.
Both are liraglutide. Victoza (up to 1.8 mg) is approved for type 2 diabetes; Saxenda (up to 3 mg) is approved for weight management. They should not be used together.
GLP-1 Receptor Agonists alternatives
Compare all GLP-1 Receptor Agonists medications — uses, side effects, and cost differences
Saxenda dosage guide
Adult, pediatric, renal, and hepatic dosing for Saxenda
Saxenda side effects
Complete adverse effect profile including common, serious, and rare reactions
Saxenda drug interactions
Full interaction list with severity ratings for Saxenda
Obesity treatment options
Medications, lifestyle changes, and clinical guidance for Obesity
Overweight treatment options
Medications, lifestyle changes, and clinical guidance for Overweight
Saxenda and Insulin / insulin secretagogues (sulfonylureas) interaction
Check the clinical significance of combining Saxenda with Insulin / insulin secretagogues (sulfonylureas)
Saxenda and Other GLP-1 receptor agonists (semaglutide, dulaglutide, exenatide) interaction
Check the clinical significance of combining Saxenda with Other GLP-1 receptor agonists (semaglutide, dulaglutide, exenatide)
Saxenda (liraglutide 3 mg) is a once-daily injectable GLP-1 receptor agonist approved specifically for chronic weight management — not diabetes. It works with a reduced-calorie diet and increased physical activity to help adults, and adolescents aged 12 and older, who have obesity or are overweight with a weight-related health problem. By mimicking a natural gut hormone, it reduces appetite so you feel full sooner and eat less.
Saxenda belongs to the GLP-1 Receptor Agonists class of medications. Liraglutide is a GLP-1 receptor agonist that increases glucose-dependent insulin secretion, slows gastric emptying, and acts on appetite centers in the brain to reduce hunger and energy intake. Understanding how Saxenda works helps explain both its therapeutic benefits and its characteristic side-effect profile, and it is the reason clinicians monitor specific parameters during treatment.
## What Saxenda is used for
Saxenda is prescribed for Chronic weight management, Weight loss in obesity, Weight management with weight-related comorbidities. Saxenda is indicated when a body mass index (BMI) is 30 or higher, or 27 or higher with a condition such as high blood pressure, type 2 diabetes, or high cholesterol. It is meant as a long-term tool alongside lifestyle change, not a quick fix; if a patient has not lost at least 4% of body weight after 16 weeks at the full dose, treatment is usually stopped. Your prescriber decides whether Saxenda is appropriate based on your diagnosis, other medical conditions, current medications, and treatment goals. Saxenda is available by prescription only and has been FDA-authorized since 2014.
## Dosage and administration
Typical adult dosing: Start 0.6 mg subcutaneously once daily; increase by 0.6 mg weekly to the maintenance dose of 3 mg once daily. Discontinue if 4% body weight is not lost by 16 weeks.
Saxenda is started low at 0.6 mg once daily and increased by 0.6 mg each week over five weeks to the 3 mg maintenance dose. This slow titration is deliberate — it limits nausea, the most common reason people struggle early. It is injected under the skin of the abdomen, thigh, or upper arm at any time of day, with or without food. Never change your dose or stop Saxenda without speaking to your prescriber. Dose adjustments may be needed for older adults, low body weight, kidney or liver impairment, or when Saxenda is combined with interacting drugs. Available forms include Subcutaneous injection (prefilled pen), in strengths of 0.6 mg, 1.2 mg, 1.8 mg, 2.4 mg, 3 mg.
## Side effects
Like all medicines, Saxenda can cause side effects, though many people tolerate it well. Common side effects include Nausea, Diarrhea, Constipation, Vomiting, Headache, Low blood sugar (with diabetes), Injection-site reaction. These are often mild and tend to settle as your body adjusts. Serious side effects that warrant prompt medical attention include Pancreatitis, Gallbladder disease, Thyroid C-cell tumors (boxed warning), Acute kidney injury. Gastrointestinal effects — nausea, diarrhea, constipation, and vomiting — are by far the most common and usually ease with time. A boxed warning highlights a risk of thyroid C-cell tumors seen in rodents, so Saxenda is contraindicated in anyone with a personal or family history of medullary thyroid cancer or MEN 2. Pancreatitis and gallbladder problems are less common but important. Seek emergency care for signs of a severe allergic reaction — hives, swelling of the face or throat, or difficulty breathing.
## Managing common side effects
Many of the common effects of Saxenda can be eased with simple self-care while your body adjusts:
If any side effect is severe, does not improve, or interferes with daily life, contact your healthcare provider rather than stopping Saxenda on your own.
## Warnings and precautions
Before starting Saxenda, tell your healthcare provider about all your medical conditions and every medication, supplement, and herbal product you take. Key precautions: Boxed warning: risk of thyroid C-cell tumors; contraindicated with personal/family history of medullary thyroid carcinoma or MEN 2; Risk of acute pancreatitis; May cause gallbladder problems; Not for use with other GLP-1 agonists or insulin for weight loss. Saxenda is not suitable for everyone, and certain conditions make it unsafe. During pregnancy, Saxenda carries a labeled status of "Not recommended"; discuss the risks and benefits with your clinician if you are pregnant, planning pregnancy, or breastfeeding.
## Drug interactions
Saxenda can interact with Insulin and sulfonylureas (moderate) — Increased hypoglycemia risk; dose adjustment may be needed; Oral medications (minor) — Delayed gastric emptying may affect absorption. Interactions are an important reason to keep your care team informed of every product you use. Because interactions can reduce effectiveness or raise the risk of harm, keep an up-to-date medication list and have your pharmacist run an interaction check whenever a new drug is added.
## Cost, coverage, and savings
Out-of-pocket cost for Saxenda varies widely depending on insurance, pharmacy, and whether a generic is available. Saxenda is expensive and coverage for weight-loss drugs is inconsistent. Novo Nordisk runs a savings card for eligible commercially-insured patients and a patient-assistance program for those who qualify, and a "Saxenda savings card" or coupon is one of the most-searched ways to reduce the monthly price. Patients commonly look for a saxenda copay card, manufacturer savings card, or patient assistance program to lower cost; the manufacturer's official site and your pharmacist are the most reliable sources for current offers. Comparing cash prices across pharmacies and discount programs can also produce meaningful savings.
## How Saxenda compares to alternatives
Saxenda (liraglutide) is once daily, whereas Wegovy (semaglutide) and Zepbound (tirzepatide) are once weekly and have produced greater average weight loss in trials. Saxenda is the same molecule as the diabetes drug Victoza but at a higher dose; the two should never be combined. The "best" option is individual: it depends on your condition, response, tolerability, other medicines, insurance coverage, and dosing convenience. Discuss alternatives with your prescriber rather than switching on your own, and never stop a prescribed medicine abruptly unless told to.
## Monitoring and lifestyle
Treatment with Saxenda works best alongside follow-up and healthy habits. Your clinician tracks weight and waist measurements, reviews tolerability, and may check blood sugar; the 16-week milestone is a formal checkpoint to decide whether to continue. A balanced diet, regular physical activity appropriate to your health, adequate sleep, limited alcohol, and not smoking all support better outcomes and may improve how well Saxenda works. Keep scheduled appointments and laboratory tests so your clinician can confirm the medicine is helping and catch any problems early.
## What to expect from treatment
Knowing the timeline helps set realistic expectations. Saxenda is typically absorbed with peak 8–12 hours after sc injection, and has an elimination half-life of about 13 hours, which shapes how often you dose it and how quickly it leaves your system if stopped. Some people notice effects early, while for others the full benefit of Saxenda builds over weeks of consistent use. Success is measured against your personal treatment goals — whether that is better disease control, fewer symptoms, or reduced long-term risk — so keep your follow-up appointments so progress can be confirmed objectively rather than by guesswork.
## Before you start Saxenda
A thorough pre-treatment review helps Saxenda work safely. Tell your prescriber about heart, liver, or kidney problems, any history of allergic reactions, and whether you are pregnant or breastfeeding. Bring a complete list of prescription drugs, over-the-counter products, vitamins, and herbal supplements so interactions can be screened. Your clinician may order baseline tests and will set clear goals and a follow-up plan before you begin Saxenda. Ask what results to expect, how long until the medicine takes effect, and which symptoms should prompt a call.
## Missed dose and overdose
If you miss a dose of Saxenda, take it as soon as you remember unless it is almost time for the next dose — in that case skip the missed dose and continue your regular schedule. Do not double up to make up for a missed dose. If you suspect an overdose or someone has taken too much, contact your local poison control center or emergency services immediately. Using a pill organizer, phone reminder, or refill-reminder service helps maintain consistent dosing, which is important for Saxenda to work properly.
## Use in specific populations
Pregnancy and breastfeeding: Saxenda carries a labeled status of "Not recommended." Tell your clinician if you are pregnant, may become pregnant, or are breastfeeding so the safest plan can be chosen. Older adults may be more sensitive to side effects and sometimes need lower doses or closer monitoring. Kidney or liver impairment can change how Saxenda is handled by the body and may require dose adjustment. Children and adolescents should use Saxenda only when specifically indicated and supervised by an appropriate specialist.
## When to contact your doctor
Contact your healthcare provider if your symptoms do not improve, if side effects are persistent or troubling, or if you have new symptoms after starting Saxenda. Call emergency services for chest pain, trouble breathing, fainting, severe bleeding, sudden severe headache, or signs of a serious allergic reaction. Do not stop Saxenda on your own — abrupt discontinuation of some medicines can cause rebound effects or loss of disease control.
## Storage and handling
Refrigerate at 2–8°C before first use; after first use, store up to 30°C or refrigerated for 30 days. Keep Saxenda in its original container, out of the reach of children and pets, and away from excess heat and moisture. Check the expiration date before use and do not use a product that looks discolored or damaged. Dispose of unused or expired medicine safely through a pharmacy take-back program rather than flushing it, unless the label specifically instructs otherwise.
## Clinical evidence and effectiveness
Approval rested on the SCALE trials, in which adults on Saxenda lost substantially more weight than those on placebo over 56 weeks, with additional benefits for blood sugar and cardiovascular risk factors. The degree of benefit varies from person to person, and real-world results depend on consistent use, adherence to the rest of your treatment plan, and individual factors such as other conditions and medications. Ongoing post-marketing surveillance continues to refine what is known about Saxenda's long-term safety and effectiveness, and clinical guidelines are updated as new evidence emerges. Your prescriber can explain what the evidence means for your specific situation and what improvement is realistic to expect.
## Tips for getting the most from Saxenda
Consistency is the single most important factor: take Saxenda at the same time and in the same way each day, and refill before you run out to avoid interruptions. Keep a simple symptom-and-side-effect diary for the first weeks so you and your clinician can judge how well it is working. Store the medicine correctly, never share it with others, and bring it (or a current list) to every medical appointment. If cost or access is a barrier, raise it early — pharmacists can often suggest generics, manufacturer programs, or therapeutic alternatives that keep you on track.
## Frequently asked questions about Saxenda
Both are GLP-1 agonists for weight management. Wegovy (semaglutide) is once weekly and produced greater average weight loss in trials; Saxenda (liraglutide) is once daily. Your prescriber selects based on tolerance, insurance, and goals.
In trials, adults lost roughly 5–10% of body weight on average over a year when combined with diet and exercise. Individual results vary.
Both are liraglutide. Victoza (up to 1.8 mg) is approved for type 2 diabetes; Saxenda (up to 3 mg) is approved for weight management. They should not be used together.
## Key takeaways
To summarize the most important points about Saxenda (liraglutide):
## Medical disclaimer
This article about Saxenda (liraglutide) is for general education and is not a substitute for professional medical advice, diagnosis, or treatment. Always follow the guidance of your physician or pharmacist and the instructions on your prescription label. Information may change as new evidence emerges.
Last reviewed by MedCentralHub Medical Review Board · MedCentralHub Editorial Policy
Medical Disclaimer
The information on this page is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult your doctor, pharmacist, or qualified healthcare provider before starting, stopping, or changing any medication.