Reviewed by the PeptideMind Team · Updated July 15, 2026

Cagrilintide Dosage Guide, Benefits & Side Effects

Cagrilintide suppresses appetite via amylin receptors, producing double-digit body weight loss alone or paired with semaglutide. See trial data.

Chemical Makeup

38

Amino Acids

Cagrilintide

?

X

Position 1

Lys

K

Position 2

Cys

C

Position 3

Asn

N

Position 4

Thr

T

Position 5

Ala

A

Position 6

Thr

T

Position 7

Cys

C

Position 8

Ala

A

Position 9

Thr

T

Position 10

Gln

Q

Position 11

Arg

R

Position 12

Leu

L

Position 13

Ala

A

Position 14

Glu

E

Position 15

Phe

F

Position 16

Leu

L

Position 17

Arg

R

Position 18

His

H

Position 19

Ser

S

Position 20

Ser

S

Position 21

Asn

N

Position 22

Asn

N

Position 23

Phe

F

Position 24

Gly

G

Position 25

Pro

P

Position 26

Ile

I

Position 27

Leu

L

Position 28

Pro

P

Position 29

Pro

P

Position 30

Thr

T

Position 31

Asn

N

Position 32

Val

V

Position 33

Gly

G

Position 34

Ser

S

Position 35

Asn

N

Position 36

Thr

T

Position 37

Pro

P

Position 38

Amino acid sequence
?Position 1
LysinePosition 2
CysteinePosition 3
AsparaginePosition 4
ThreoninePosition 5
AlaninePosition 6
ThreoninePosition 7
CysteinePosition 8
AlaninePosition 9
ThreoninePosition 10
GlutaminePosition 11
ArgininePosition 12
LeucinePosition 13
AlaninePosition 14
Glutamic acidPosition 15
PhenylalaninePosition 16
LeucinePosition 17
ArgininePosition 18
HistidinePosition 19
SerinePosition 20
SerinePosition 21
AsparaginePosition 22
AsparaginePosition 23
PhenylalaninePosition 24
GlycinePosition 25
ProlinePosition 26
IsoleucinePosition 27
LeucinePosition 28
ProlinePosition 29
ProlinePosition 30
ThreoninePosition 31
AsparaginePosition 32
ValinePosition 33
GlycinePosition 34
SerinePosition 35
AsparaginePosition 36
ThreoninePosition 37
ProlinePosition 38

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Cagrilintide Dosage Guide for Weight Loss

Cagrilintide mimics a natural hormone called amylin to help curb your appetite.

Vial size

10 mg

Bacteriostatic water

3 mL

Dosing

0.25–0.5 mg

Frequency

2–3×/week

Cycle

8–12 weeks

Benefit

Weight Loss

Explore calculators

What is Cagrilintide?

Cagrilintide is a lab-made, long-acting version of a natural hormone called amylin that your pancreas releases alongside insulin. It works in the brain to reduce appetite, slow down digestion, and help you feel full longer, needing just one injection a week. It's being studied on its own and combined with semaglutide (as 'CagriSema') as a treatment for obesity.

Weight

cag

Metabolic

Is Cagrilintide FDA approved?

Cagrilintide is not an FDA-approved drug. It is intended for research purposes only and is not approved for human consumption, diagnostic, or therapeutic use.

Research Use Only

Cagrilintide has not been evaluated by the FDA for safety or efficacy in humans.

No Clinical Oversight

Not manufactured under FDA-regulated quality or clinical standards.

Unregulated Sourcing

Purity, dosing, and sourcing are not verified through FDA testing or oversight.

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How Does Cagrilintide Work?

It attaches to hunger- and fullness-signaling receptors in the brain, telling the body it's full, slowing down digestion, and reducing a hormone that would otherwise raise blood sugar after meals. A fat molecule attached to it lets it stick to a blood protein, which keeps it circulating for about a week so it only needs to be injected weekly.

Signals fullness in the brain

Attaches to hunger and fullness receptors, telling the body it's full.

Slows digestion

Reduces a hormone that would otherwise raise blood sugar after meals.

Lasts about a week

A fat molecule lets it stick to a blood protein for once-weekly dosing.

Cagrilintide Targeted areas

How to reconstitute Cagrilintide

View guide

The materials you'll need and step-by-step instructions for safely mixing Cagrilintide with bacteriostatic water.

Materials needed

Your Cagrilintide vial (lyophilized)

Alcohol swabs

Bacteriostatic sterile water

3 mL syringes (Luer Lock tip)

25G or 27G needles (Luer Lock). Other gauges may also be acceptable.

Sharps container (optional)

1

Remove the caps

Remove the caps from both your Cagrilintide vial and your bacteriostatic water vial.
2

Sanitize the rubber stoppers

Wipe down the rubber stoppers on both vials with alcohol swabs and let them dry for about 3 minutes.
3

Attach the needle

Take your 3 mL syringe and needle. Twist the needle's plastic hub into the Luer Lock tip on the syringe to secure it.
4

Draw the bac water

Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.

How much bac water? Cagrilintide typically comes in a 10 mg vial. We recommend 3 mL of bacteriostatic water, though anywhere between 1 mL and 3 mL is acceptable. For larger vials you can use up to 5 mL — more bac water makes microdosing easier, but insulin needles usually max out at 1 mL per injection. That means a lot of bac water might force you into multiple injections to hit your target dose. Unless you're microdosing, 2 mL per vial is a solid rule of thumb.
5

Insert the needle into the Cagrilintide vial

With the bac water in your syringe, insert the needle into the Cagrilintide vial at a slight angle to avoid pressure buildup.

Use a thin needle: Stick to 25G or higher to avoid damaging the rubber stopper. Higher gauge means a thinner needle.
6

Release the water gently

Let the water run gently down the side of the vial. Don't inject it forcefully.

Heads up: Sometimes the plunger pushes itself in as soon as the needle enters the vial. Hold the plunger back so you have full control over how fast the bac water enters.
7

Swirl to dissolve

Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.

Be patient: This usually takes 2 to 5 minutes of consistent swirling, mixing in a circular motion, and gently flipping the vial up and down. The water needs to run through the powder many times to fully dissolve it. Don't shake or get aggressive with it.
8

Check for full dissolution

The solution should be clear with no visible particles. If it's cloudy or clumpy, wait a minute and repeat the swirling step.
9

Cap, dispose, and store

Once you're done, cap the needle and dispose of it (ideally in a sharps container). Store the reconstituted Cagrilintide vial in the fridge whenever it's not in use. It will stay good for approximately 30 days.

How to Store Cagrilintide

Freeze the dry powder. Once mixed with liquid, keep it in the fridge and use within about a month, and don't refreeze it.

Lyophilized Storage

Store at -20°C.

Reconstituted Storage

2–8°C, use within 30 days.

Handling Notes

Do not refreeze once reconstituted.

A smartphone displaying a "Storage Guide" for peptides, indicating a safe storage temperature range of 2–8°C, with warnings to keep away from light, heat, and freezing. The background is light blue, and additional tips on protecting the peptides are visible below the temperature range.

What Are the Benefits of Cagrilintide?

What research says it may help with, and how it works in the body.

weight loss

Late-stage clinical trials show it leads to significant weight loss.

When combined with another drug in a treatment called CagriSema, it produced 22.7% weight loss, more than existing treatments achieve.

In patients with diabetes, it led to 15.7% weight loss while also improving blood sugar control.

metabolic

The CagriSema combination lowered a long-term blood sugar marker called HbA1c by 2.2%, more than semaglutide used on its own.

By activating a hormone receptor called the amylin receptor, it makes the body more responsive to insulin and improves how it processes sugar.

appetite control

Reduces appetite through two separate hormone pathways, the amylin and calcitonin receptors, working together.

What Are the Side Effects of Cagrilintide?

Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.

Who Should Avoid It

Not recommended in pregnancy or breastfeeding

Not yet commercially available (FDA approval expected Q1 2026)

Stop Right Away If You Notice

Severe persistent nausea/vomiting preventing hydration

Pancreatitis signs (severe abdominal pain radiating to back)

Severe allergic reactions or anaphylaxis

Significant injection site reactions or abscess formation

Milder Signs to Watch For

Fibril formation at improper pH—solution must remain clearAggregation or precipitation indicates degradation
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How Long Should a Cagrilintide Cycle Last?

This breaks down how long a typical Cagrilintide cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.

That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.

Week 1-2
Gastrointestinal adaptation; mild nausea possible during dose escalation
Week 4-8
Early weight loss (2-5%); noticeable appetite reduction
Week 12-26
Significant weight loss acceleration (10-15%); improved satiety signals
Week 0-0
Peak efficacy (15-23% weight loss); sustained maintenance with continued therapy

Cheat Sheets Featuring Cagrilintide

See how Cagrilintide fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.

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Master Peptide Cheat Sheet
Master Peptide Cheat Sheet

78 peptides

Metabolic Peptide Cheat Sheet
Metabolic Peptide Cheat Sheet

14 peptides

Weight Loss Peptide Cheat Sheet
Weight Loss Peptide Cheat Sheet

19 peptides

Cagrilintide Research References

It is a phase 3 compound

3Research references

Cagrilintide

Cagrilintide is a phase 3 compound

REDEFINE 1 Trial - Phase 3 Weight Loss

3,417 adults with obesity; 22.7% weight loss with CagriSema vs 2.4% placebo. New England Journal of Medicine.

2025

REDEFINE 2 Trial - Phase 3 Type 2 Diabetes

1,206 adults; 15.7% weight loss; 73.5% achieved HbA1c ≤6.5%. New England Journal of Medicine.

2025

Phase 2 Type 2 Diabetes Combination Study

32 weeks; 15.6% weight loss; 2.2% HbA1c reduction with CagriSema. The Lancet.

2023

Frequently Asked Questions About Cagrilintide

Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.