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

Dulaglutide Dosage Chart & Schedule

Dulaglutide (Trulicity) is an FDA-approved once-weekly GLP-1 receptor agonist for type 2 diabetes and cardiovascular risk reduction. It is a fusion protein linking two modified GLP-1 analog peptides to a human IgG4 Fc fragment, which substantially extends its half-life.

Route
Subcutaneous
Frequency
Once weekly
Half-life
Approximately 5 days (about 4
Storage
Refrigerate pens; limited room-temp window.
The short answer

Dulaglutide (Trulicity) is a once-weekly subcutaneous GLP-1 receptor agonist supplied in single-dose prefilled pens (not reconstituted). Labeling uses 0.75 mg or 1.5 mg weekly, with titration options up to 3.0 mg and 4.5 mg weekly.

Figures describe how Dulaglutide 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
0.75 mg/week
Fixed-dose pen; starting option.
Frequency
Once weekly
Weekly total
0.75 mg/week
Cycle
Ongoing

Lowest labeled dose; a common starting point.

Most commonStandard maintenance
1.5 mg/week
Fixed-dose pen.
Frequency
Once weekly
Weekly total
1.5 mg/week
Cycle
Ongoing

Common maintenance dose.

Higher (titration)
3.0-4.5 mg/week
Step-up options for added glucose control.
Frequency
Once weekly
Weekly total
3.0-4.5 mg/week
Cycle
Ongoing after titration

Higher labeled titration options.

A fixed-dose pen, not a vial

  • Dulaglutide is an IgG4-Fc fusion protein supplied as a single-dose prefilled pen.
  • As a large (~60 kDa) fusion protein it is not handled like a lyophilized research peptide.
  • There is no bacteriostatic-water mix or unit conversion.

Once-weekly by design

  • Half-life is about 5 days, supporting once-weekly dosing.
  • The Fc fusion resists DPP-4 cleavage and renal clearance.

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 weekly).

Mon
Tue
Wed
Thu
Fri
Sat
Sun

Dosing day Off

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 (per your mix) 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.

6

Store between uses

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

Handling & storage

  • Supplied as single-dose prefilled pens - nothing to reconstitute or measure.
  • Inject subcutaneously once weekly on the same day each week; rotate sites.
  • Refrigerate pens; a limited room-temperature window is allowed per labeling.
  • FDA-approved (2014) for type 2 diabetes and cardiovascular risk reduction.

Dulaglutide dosing FAQ

How often is dulaglutide dosed?

Once weekly, on the same day each week. Its ~5-day half-life and Fc-fusion design support weekly rather than daily dosing.

What weekly doses are available?

Labeling describes 0.75 mg and 1.5 mg weekly, with titration options to 3.0 mg and 4.5 mg weekly for additional glucose control.

Is dulaglutide reconstituted from powder?

No. It is a ready-to-use single-dose prefilled pen. As a large Fc-fusion protein it is not prepared like a lyophilized research peptide.

Which dose do people usually start on?

0.75 mg once weekly is a common starting dose, often maintained or stepped up to 1.5 mg and beyond based on response.

Sources

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