For laboratory research use only — not for human or veterinary consumption.
The Peptide Index
Dosing guide

Liraglutide Dosage Chart & Schedule

Liraglutide is an FDA-approved GLP-1 receptor agonist marketed as Victoza (type 2 diabetes) and Saxenda (chronic weight management). It is a once-daily injectable analog of human GLP-1 modified with a fatty-acid chain that extends its duration of action relative to native GLP-1.

Route
Subcutaneous
Frequency
Once daily, titrated
Half-life
Approximately 13 hours, supporting once
Storage
Refrigerate pens; in-use ~30 days.
The short answer

Liraglutide is a once-daily subcutaneous GLP-1 analog delivered by a prefilled pen (not reconstituted). Labeling titrates the dose upward over weeks - Victoza toward 1.2-1.8 mg/day for diabetes, Saxenda toward 3.0 mg/day for weight management - to ease gastrointestinal side effects.

Figures describe how Liraglutide is reported in the research literature and research-community references — not a recommendation for human use. For laboratory research only.

Dosage protocols

Commonly referenced research tiers. Start conservative; every compound and study context differs.

Starter (initiation)
0.6 mg/day
Week-1 starting step to build tolerance.
Frequency
Once daily
Weekly total
~4.2 mg/week
Cycle
Week 1, then titrate up

Initiation dose; not a target dose.

Most commonStandard maintenance
1.8 mg/day
Victoza (diabetes) maintenance ceiling.
Frequency
Once daily
Weekly total
~12.6 mg/week
Cycle
Ongoing after titration

Common maintenance dose; also a Saxenda titration step.

Weight-management target
3.0 mg/day
Saxenda target after stepwise titration.
Frequency
Once daily
Weekly total
~21 mg/week
Cycle
Ongoing after reaching target

Approved weight-management target dose.

Titration is central

  • Dosing starts at 0.6 mg/day and steps up about weekly.
  • Slow escalation is used to manage nausea and other GI effects.
  • Victoza tops out around 1.8 mg/day; Saxenda targets 3.0 mg/day.

Pen, not a vial mix

  • Commercial liraglutide is a ready-to-use 6 mg/mL prefilled pen.
  • It is dialed in mg on the pen, not reconstituted or measured in units.

Ready to run this protocol?

Dosing is only as good as the vial. Research-grade peptides are third-party tested with published COAs from our top-rated source — reconstitute with confidence and skip the guesswork on identity and purity.

Weekly schedule

A typical week on the standard maintenance protocol (Once daily).

Mon
Tue
Wed
Thu
Fri
Sat
Sun

Dosing day Off

Liraglutide reconstitution

Commercial liraglutide is supplied ready-to-use as a prefilled pen (6 mg/mL solution) and is not reconstituted. For reference, if a lyophilized research vial were prepared: 5 mg + 2 mL bacteriostatic water = 2,500 mcg/mL (2.5 mg/mL); 1 unit is approximately 0.025 mg (25 mcg).

Concentration
3,000 mcg/mL
Per syringe unit
30 mcg
Draw for 600 mcg
20 units
Doses per vial
~10
Open this mix in the calculator →

From vial to injection in 6 steps

1

Wipe both vial tops

Swab the peptide vial and the bacteriostatic-water vial with fresh alcohol and let them dry.

2

Draw the water

Pull the planned amount of bacteriostatic water (2 mL) into the syringe.

3

Add it slowly

Run the water down the inside wall of the vial — don't blast the powder. Swirl gently; never shake.

4

Let it dissolve

Wait until the solution is fully clear, then refrigerate the vial.

5

Draw your dose

Pull the calculated units on a U-100 insulin syringe (~20 units for 600 mcg).

6

Store between uses

Keep the reconstituted vial refrigerated and use within its stable window.

Handling & storage

  • Supplied as a prefilled multi-dose pen - no reconstitution or unit math needed.
  • Rotate subcutaneous sites (abdomen, thigh, upper arm) and dose at a consistent time daily.
  • Refrigerate unopened pens; an in-use pen is generally kept up to ~30 days per labeling.
  • FDA-approved (Victoza 2010; Saxenda 2014); titrate under the product labeling.

Liraglutide dosing FAQ

Why does liraglutide start so low at 0.6 mg?

The low start and weekly step-ups let the gut adjust, reducing nausea and other GI effects before reaching a 1.2-1.8 mg (diabetes) or 3.0 mg (weight) target.

Is liraglutide reconstituted or dosed in units?

Neither. It comes as a ready-to-use 6 mg/mL prefilled pen and is dialed in milligrams, unlike a lyophilized research peptide.

How is it different from once-weekly GLP-1 drugs?

Liraglutide's half-life is about 13 hours, so it is injected once daily, whereas semaglutide and dulaglutide are dosed once weekly.

What is the difference between the Victoza and Saxenda doses?

Same molecule, different targets: Victoza (diabetes) titrates to 1.2-1.8 mg/day, while Saxenda (weight management) titrates to 3.0 mg/day.

Sources

Categories: GLP-1 & Metabolic · Status: Approved (see notes). This page is educational and for laboratory research use only; it is not medical advice.