Saxenda® vs Wegovy® for weight management

Saxenda® vs Wegovy® is the choice a lot of people face when they start looking at weight management shots. Both are FDA-approved. Both can help.

Maybe your friend lost weight on one of them. Maybe your clinic offers the other. It is easy to feel stuck before you even begin.

Here is my honest take. These two are not twins. One is a daily shot, and one is a weekly shot, and their trial results are not the same.

Saxenda® vs Wegovy®: how they stack up for weight management

Let me put the two side by side. This is the part most readers want first. The table below uses the FDA labels and the main weight trials for each brand.

Feature	Saxenda® (liraglutide)	Wegovy® (semaglutide)
FDA use	Chronic weight management	Chronic weight management
Injection schedule	Once daily	Once weekly
Dose steps	0.6 mg up to 3.0 mg daily	0.25 mg up to 2.4 mg weekly
Main weight trial	SCALE, 56 weeks, 3,731 adults	STEP 1, 68 weeks, 1,961 adults
Mean weight change	-7.4% vs -3.0% placebo	-14.9% vs -2.4% placebo
Boxed warning	Thyroid C-cell tumors, MTC, MEN 2	Thyroid C-cell tumors, MTC, MEN 2

FDA-labeled facts and lead weight trials for Saxenda® and Wegovy®. Trial results are for the branded products only.

One thing jumps out. Both brands treat the same goal, yet the schedule and the average results are different. That is the heart of this comparison.

I would not read the table as a scoreboard, though. Saxenda® and Wegovy® were studied in different trials, with different people and lengths. Keep that in mind as you compare the numbers.

Saxenda® and Wegovy® share a family, not a schedule. One is daily, one is weekly, and that shapes everything.

How Saxenda® (liraglutide) works for weight management

Saxenda® is the brand name for liraglutide. It is FDA-approved for chronic weight management in adults. Teens 12 and older who weigh over 60 kg with obesity can use it too.

You take Saxenda® as a shot under the skin, once every day. The dose starts low and steps up each week. That slow climb helps your stomach settle.

Adults who are overweight and have at least one weight-related condition may also qualify. Your clinician confirms if Saxenda® is right for you.

Saxenda® comes in a prefilled pen you dose once a day. The daily habit is the trade for a smaller average result than Wegovy®. For some people, that daily rhythm still fits best.

Here is how the Saxenda® dose climbs, one week at a time.

1. Week 1: Saxenda® 0.6 mg once daily. This is a starting dose, not a weight dose.

2. Week 2: Saxenda® 1.2 mg once daily.

3. Week 3: Saxenda® 1.8 mg once daily.

4. Week 4: Saxenda® 2.4 mg once daily.

5. Week 5 and on: Saxenda® 3.0 mg once daily, the maintenance dose.

Notice the whole ramp happens in about a month. Each step is one week, then you hold at 3.0 mg. If a step feels rough, your clinician may slow it down.

Once you reach 3.0 mg, that becomes your steady daily dose. You keep the same routine, at the same time each day. Picking a set time can make the habit easier.

How Wegovy® (semaglutide) works for weight management

Wegovy® is the brand name for semaglutide, used for chronic weight management. Unlike Saxenda®, you take Wegovy® just once a week. That is one shot, not seven.

The Wegovy® dose also climbs, but on a monthly rhythm. It steps up every 4 weeks. This gives your body time to adjust at each level.

Wegovy® starts at 0.25 mg once weekly. It moves up through 0.5 mg, 1 mg, and 1.7 mg. Most people settle at the 2.4 mg maintenance dose, or stay at 1.7 mg.

Wegovy® is FDA-approved for chronic weight management as well. In STEP 1, it was studied in adults with obesity or overweight and no type 2 diabetes. Your clinician checks if you fit the label.

A weekly shot is easier to keep up with than a daily one. That, to me, is a real edge for Wegovy® over time.

Daily vs weekly: the schedule difference that matters

This is the difference I would flag first. Saxenda® is a daily habit. Wegovy® is a weekly one.

A daily shot means a routine you keep up seven days a week. Some people like that steady rhythm. Others find it easy to forget.

A weekly shot asks less of your calendar. But a missed weekly dose covers more ground. Both brands give clear steps for a missed dose, so ask your care team.

There is no right answer here, only the right fit for your life. Think about travel, work shifts, and how you remember medicines. A schedule you can keep beats one you skip.

What SCALE showed about Saxenda®

SCALE was the main weight trial for Saxenda®. It ran for 56 weeks and enrolled 3,731 adults. About two-thirds took Saxenda®, and one-third took a placebo.

In SCALE, adults on Saxenda® lost 7.4% of their body weight on average. The placebo group lost 3.0%. That is a gap of about 4.5 percentage points.

That 4.5 point gap is the extra weight loss Saxenda® added over placebo. It came over a full 56 weeks, not overnight. Steady effort and a steady dose worked together.

What STEP 1 showed about Wegovy®

STEP 1 was the main weight trial for Wegovy®. It ran for 68 weeks in 1,961 adults with obesity or overweight and no type 2 diabetes. About two in three got Wegovy®.

In STEP 1, Wegovy® 2.4 mg lowered mean body weight by 14.9%. Placebo lowered it by 2.4%. That is a gap of 12.4 percentage points (95% CI -13.3 to -11.6).

That 14.9% average is one of the larger results seen in a weight trial. It came over 68 weeks at the 2.4 mg maintenance dose. As always, a trial average is not a personal promise.

One caution from me. SCALE and STEP 1 were separate trials, not a head-to-head. So the numbers hint at a difference, but they do not prove one brand beats the other in the same room.

These results apply only to the FDA-approved branded product and do not transfer to compounded preparations. Compounded semaglutide is not FDA-approved. It is not a generic of Wegovy® or Ozempic®, and it is not evaluated by the FDA for safety, effectiveness, or quality.

Side effects and safety to keep in view

Both brands can upset your stomach, especially early on. Nausea, diarrhea, constipation, and vomiting are common with Saxenda®. Headache, tiredness, and dizziness can show up too.

Wegovy® shares these gut-related effects as a GLP-1 medicine. They often ease as your dose climbs slowly. Going up too fast tends to make them worse.

Pancreatitis is a rare but serious risk with GLP-1 medicines like Saxenda® and Wegovy®. Watch for bad belly pain that may spread to your back, with or without vomiting. If that happens, stop the shot and get medical help right away.

Because of the boxed warning, neither brand fits people with a personal or family history of MTC or MEN 2. Your care team will ask about this before you start.

Most side effects with Saxenda® and Wegovy® are mild and fade with time. Eating smaller meals and going slow on the dose can help. Tell your care team if anything feels severe or will not settle.

A quick note on cost and access

I promised no price talk, and I will keep it. What I will say is that access varies a lot by plan and provider.

Some telehealth providers offer no insurance required paths and handle titration and follow-up for you. Others lean on your own clinic. The right setup depends on your coverage and your comfort.

This is where comparing providers, not just brands, pays off. A good provider makes the daily or weekly routine easier to sustain.

Which one might fit you

Here is where I land. If a weekly routine and a larger average result matter most, Wegovy® is worth a close look.

If you prefer a daily rhythm, or your plan covers Saxenda® more easily, that is a fair choice too. A daily shot can build a strong habit.

The best weight management shot is the one you will actually take, week after week.

Money and access matter too, and they are personal. Some plans cover one brand and not the other. A provider who handles prior authorizations can save you real hassle.

The best brand is the one you can stick with, under a clinician who titrates and follows up. Ask about coverage, side effects, and what to do if you miss a dose.

3. Pi-Sunyer X, et al. A Randomized, Controlled Trial of 3.0 mg of Liraglutide in Weight Management (SCALE). N Engl J Med. 2015;373:11-22. PMID 26132939. NCT01272219.

4. Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). N Engl J Med. 2021. PMID 33567185. NCT03548935.

Frequently asked questions

Is Saxenda® or Wegovy® better for weight loss?

In their main trials, Wegovy® showed a larger average result than Saxenda®. Wegovy® lowered body weight by 14.9% in STEP 1, while Saxenda® lowered it by 7.4% in SCALE. But these were separate trials, not a head-to-head. Your body, your routine, and your care team all shape the real answer for you.

What is the main difference between Saxenda® and Wegovy®?

The biggest difference is the schedule. Saxenda® (liraglutide) is a shot you take once every day. Wegovy® (semaglutide) is a shot you take just once a week. Both are FDA-approved for chronic weight management, and both climb from a low starting dose. The active medicine and the trial results differ too.

How much weight did people lose on Saxenda® in SCALE?

In the SCALE trial, adults on Saxenda® lost 7.4% of their body weight on average over 56 weeks. The placebo group lost 3.0%. That is a gap of about 4.5 percentage points. SCALE enrolled 3,731 adults, so the group was large. Your own results can differ from a trial average.

How much weight did people lose on Wegovy® in STEP 1?

In STEP 1, adults on Wegovy® 2.4 mg lost 14.9% of their body weight on average over 68 weeks. Placebo lost 2.4%. That is a gap of 12.4 percentage points. STEP 1 included 1,961 adults with obesity or overweight and no type 2 diabetes. A trial average is not a promise for any one person.

Do Saxenda® and Wegovy® have the same side effects?

They share the common GLP-1 gut effects. Nausea, diarrhea, constipation, and vomiting are the ones people notice most. Saxenda® can also bring headache, tiredness, and dizziness. These often ease as the dose rises slowly. Both brands carry a boxed warning about thyroid C-cell tumors, so your care team screens for MTC and MEN 2 first.

Why is Saxenda® a daily shot and Wegovy® weekly?

It comes down to the medicine. Saxenda® uses liraglutide, which the FDA label doses once daily. Wegovy® uses semaglutide, which is dosed once weekly. Both step up slowly from a low start to limit stomach upset. If a weekly rhythm suits your life better, that is a fair point to raise with your clinician.

Can I switch from Saxenda® to Wegovy®?

Only your prescriber can decide that. The two brands use different medicines and different schedules, so the doses do not line up one to one. A switch would mean starting the new brand on its own titration plan. Ask your care team how they would handle timing, side effects, and any gap between the two.

Are compounded versions the same as Saxenda® or Wegovy®?

No. Compounded semaglutide is not FDA-approved, not a generic of Wegovy® or Ozempic®, and not evaluated by the FDA for safety, effectiveness, or quality. The trial results on this page come from the branded products only. They do not transfer to compounded versions. Raise any compounded option with a licensed pharmacy or prescriber.

Important: This page is for education only and is not medical advice. Any medicines named here are available by prescription. Always talk to a licensed clinician about medicines, symptoms, or anything you are considering.