Retatrutide vs DSIP

A comprehensive, data-driven comparison of Retatrutide (LY3437943) and DSIP (Delta Sleep-Inducing Peptide). Compare efficacy, side effects, costs, FDA approval status, and clinical evidence to make an informed decision.

Retatrutide
Phase 3 (NDA expected late 2026)
Obesity and weight management
Evidence
High
Avg. Weight Loss28.7%
Monthly Cost$1,200 - $1,500/mo
DosingWeekly
ManufacturerEli Lilly
DSIP
Category 2
Sleep disorders and stress reduction
Evidence
Emerging
Monthly Cost$35 - $70/mo
DosingDaily

Side-by-Side Comparison

PropertyRetatrutide
LY3437943
DSIP
Delta Sleep-Inducing Peptide
FDA Status
Phase 3 (NDA expected late 2026)
Category 2
Category
Weight Loss
Sleep
Primary Use
Obesity and weight management
Sleep disorders and stress reduction
Weight Loss %
28.7%
N/A
Monthly Cost
$1,200 - $1,500/mo
$35 - $70/mo
Administration
Subcutaneous injection
Subcutaneous injection
Typical Dose
12mg weekly (dose escalated from 2mg)
100-300mcg before bed
Frequency
Weekly
Daily
Mechanism

Triple agonist targeting GIP, GLP-1, and glucagon receptors to enhance insulin secretion, reduce appetite, and increase energy expenditure

Neuropeptide that may modulate sleep patterns, reduce stress, and regulate circadian rhythms

Common Side Effects
  • Nausea
  • Diarrhea
  • Vomiting
  • Constipation
  • +3 more
  • Injection site reactions
  • Drowsiness
  • Vivid dreams
Serious Side Effects
  • Pancreatitis
  • Gallbladder disease
  • Severe gastrointestinal reactions
  • Hypoglycemia (if combined with insulin)
  • Unknown long-term effects
  • Potential hormone interactions
Evidence Quality
High
Emerging
Clinical Trial Phase
Phase 3
N/A

Key Differences

  • 1Retatrutide has clinical weight loss data (28.7%), while DSIP is not primarily indicated for weight loss.
  • 2DSIP is generally more affordable ($35 - $70/mo) compared to Retatrutide ($1,200 - $1,500/mo).
  • 3Retatrutide is dosed weekly, while DSIP is daily.
  • 4Retatrutide has high-quality evidence, while DSIP has emerging-quality evidence.
  • 5They belong to different categories: Retatrutide (Weight Loss) vs DSIP (Sleep).

Which Is Better For...

DS

DSIP

More budget-friendly option with lower monthly costs

RE

Retatrutide

More convenient dosing schedule (weekly)

DS

DSIP

Fewer commonly reported side effects

RE

Retatrutide

Stronger clinical evidence base to support its use

Cost Comparison

PeptideMonthly Cost RangeFDA StatusManufacturer
Retatrutide$1,200 - $1,500/mo
Phase 3 (NDA expected late 2026)
Eli Lilly
DSIP$35 - $70/mo
Category 2
Various research labs

Prices are estimated monthly costs and may vary based on pharmacy, insurance coverage, and manufacturer assistance programs. Costs for non-FDA-approved peptides reflect research compound pricing.

Frequently Asked Questions

What is the main difference between Retatrutide and DSIP?

Retatrutide works via Triple agonist targeting GIP, GLP-1, and glucagon receptors to enhance insulin secretion,. DSIP works via Neuropeptide that may modulate sleep patterns, reduce stress, and regulate circadian rhythms. They differ in FDA approval status, efficacy data, and cost.

Which is more effective for weight loss, Retatrutide or DSIP?

Retatrutide has demonstrated 28.7% average weight loss in clinical trials. DSIP is not primarily used for weight loss.

How much does Retatrutide cost compared to DSIP?

Retatrutide typically costs $1,200 - $1,500/mo, while DSIP costs $35 - $70/mo. Prices may vary by pharmacy, insurance coverage, and manufacturer programs.

Are Retatrutide and DSIP FDA approved?

Retatrutide is not FDA-approved (Phase 3 (NDA expected late 2026)). DSIP is not FDA-approved (Category 2). FDA approval indicates the treatment has met rigorous safety and efficacy standards.

What are the side effects of Retatrutide vs DSIP?

Common side effects of Retatrutide include Nausea, Diarrhea, Vomiting. Common side effects of DSIP include Injection site reactions, Drowsiness, Vivid dreams. Always consult a healthcare provider about potential side effects.

Can I switch from Retatrutide to DSIP?

Switching between peptide therapies should only be done under the guidance of a qualified healthcare provider. They can evaluate your medical history, current response, and determine the safest transition protocol.

Learn More

Retatrutide Full Profile
Obesity and weight management

Retatrutide is a novel triple-receptor agonist developed by Eli Lilly currently in Phase 3 clinical trials. It has demonstrated unprecedented weight loss results, with patients losing an average of 28...

View Full Retatrutide Guide
DSIP Full Profile
Sleep disorders and stress reduction

DSIP (Delta Sleep-Inducing Peptide) is a neuropeptide first discovered in 1977 in the brains of sleeping rabbits. Research suggests it may have broader effects on stress response, pain modulation, and...

View Full DSIP Guide

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Medical Disclaimer

The information provided on this page is for educational and informational purposes only and does not constitute medical advice. This comparison between Retatrutide and DSIP should not be used as a substitute for professional medical guidance. Always consult a qualified healthcare provider before starting, stopping, or modifying any peptide therapy. Clinical data cited may be from ongoing trials and is subject to change. Individual results may vary significantly. PeptideVS does not endorse, recommend, or promote the use of any specific peptide for medical treatment.