Do I really have to inject every single day?

Yes — liraglutide has a shorter half-life than semaglutide or tirzepatide, so daily injection is required. The needle is very small and most people adjust within the first week or two. It is less convenient than once-weekly options.

Why would I choose liraglutide over a weekly drug?

Access and insurance are the main reasons. Some insurers require a trial of liraglutide before approving semaglutide or tirzepatide. Liraglutide is also the only GLP-1 approved for adolescents aged 12 and over.

Is generic liraglutide available?

Generic liraglutide for obesity became available in 2025, which may significantly reduce the cost. Ask your pharmacist what is available in your area.

Moderate alcohol is generally permitted, but it adds calories and can worsen nausea. No strict ban, but many people find their tolerance for alcohol changes while on GLP-1 medications.

What happens when I stop?

Weight regain after stopping is expected, as with all GLP-1 drugs. No large randomised withdrawal study has been published specifically for liraglutide in obesity, but the general pattern is similar to the class.

Liraglutide (Saxenda) — Plain Decisions

Key facts

At a glance

The numbers you need before deciding.

Weight loss

~18 lbs for a 220 lb person

Monthly cost

$1000–$1400/mo

Generic liraglutide became available in 2025 — ask your pharmacist about generic pricing in your area

How you take it

Daily injection

Once daily — needle is very small

Main side effect

Nausea

About 4 in 10 people · usually temporary

Fat vs lean

75% fat

25% lean · SCALE Obesity body composition data

If you stop

Weight regain expected

Pattern consistent with the drug class

Before you start

Learn about this treatment

Everything you'd want to know before deciding.

Weight loss results

Trial data, timelines, what's realistic

Side effects

Rates, what helps, and when to call your doctor

Cost & savings

List price, insurance, manufacturer programs

How it works & dosage

GLP-1 agonist — what that means for you

Clinical evidence

2 trials, all linked

On treatment

Already taking this?

Practical guides for people currently on this medication.

Dose titration schedule

Step-by-step dose increases

Not losing weight yet?

Troubleshooting — what to check first

Nausea or GI issues

What helps right now — from trial data

Missed a dose

When to take it, when to skip

Injection guide

Sites, rotation, step-by-step

What to eat

Protein targets, meal timing, appetite shifts

Week-by-week journey

What to expect from week 1 to month 12

Clinical evidence

How it compares in trials

Average weight loss % — from individual phase 3 trials

Liraglutide

Semaglutide injection

14.9%

Tirzepatide

20.9%

What does the lost weight consist of?

75% fat

25% lean

Fat mass — the primary target of treatmentLean mass — muscle, bone, water

Resistance training (weight lifting, bodyweight exercises) can significantly reduce the lean mass portion. Aim for 2–3 sessions per week during weight loss.

Source: SCALE Obesity body composition data

Affordability

Cost & savings

$1000–$1400per month

Savings options

Generic liraglutide became available in 2025 — ask your pharmacist about generic pricing in your area.

Is this right for you?

Who this tends to fit

Relevant if you

Need a GLP-1 option approved for adolescents (age 12+)
Already using liraglutide for diabetes and want to continue
Looking for a GLP-1 with a long safety track record

Not right if you

You prefer weekly over daily injections
You want higher weight loss than newer GLP-1 drugs provide
You are pregnant or planning to become pregnant

Safety

Important cautions

In animal studies, liraglutide caused thyroid tumours. It is not prescribed to people with a personal or family history of medullary thyroid cancer.
Stop taking and contact your doctor if you develop severe abdominal pain — this may indicate pancreatitis.
Liraglutide increases resting heart rate by approximately 2–3 beats per minute. This should be monitored in people with heart conditions.

Practical guide

How to take Liraglutide

Inject under the skin of your thigh, abdomen, or upper arm — once daily at the same time each day

Starting dose is 0.6mg for the first week. Your doctor increases it weekly until reaching 3mg

Store in the refrigerator (36–46°F). Do not freeze.

Each pen is reusable — attach a new needle for each injection

Common questions

FAQ

Medical disclaimer: This website is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any treatment.