Exendin-4 vs Insulin Glargine

Head-to-head comparison of Exendin-4 (Exendin-4 (synthetic exenatide)) and Insulin Glargine (Insulin glargine (A21Gly,B31Arg,B32Arg human insulin analog)) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyExendin-4Insulin Glargine
CategoryDiabetes & MetabolicDiabetes & Metabolic
Full NameExendin-4 (synthetic exenatide)Insulin glargine (A21Gly,B31Arg,B32Arg human insulin analog)
Molecular Weight4186 Da6063.6 Da
Half-Life2.4 hoursAbout 12-24 hours
Amino Acids3951
Typical Dose5-10 mcg twice daily0.1-0.2 U/kg once daily
RouteSubcutaneousSubcutaneous
Purity≥98%≥98%
Studies Count180013000
Research StatusClinicalApproved

Exendin-4 Benefits

  • beta-cell survival
  • glucose-stimulated insulin secretion
  • reduced glucolipotoxicity
  • lowered HbA1c in clinical use

Insulin Glargine Benefits

  • Once-daily basal coverage
  • Smooth action profile
  • Lower nocturnal hypoglycemia risk
  • Improves fasting glucose control

Exendin-4 Dosing

5 mcg SC twice daily for 4 weeks|increase to 10 mcg SC twice daily if tolerated|research: 0.1-1 µM in vitro or 1-10 µg/kg in animals

Insulin Glargine Dosing

Inject SC once daily at the same time each day|Titrate every 3-4 days to fasting glucose targets|Can be combined with prandial insulin

Exendin-4 Side Effects

  • nausea
  • vomiting
  • injection-site reactions

Insulin Glargine Side Effects

  • Hypoglycemia
  • Injection-site reactions
  • Weight gain

Research Overview

Exendin-4

Exendin-4 helped establish GLP-1 receptor biology in diabetes and remains a classic beta-cell protective peptide. Preclinical studies show reduced beta-cell apoptosis, improved insulin content, and better islet function under metabolic stress.

Insulin Glargine

Clinical and translational studies support its use as a basal comparator because of prolonged absorption and stable glycemic control. It is heavily used in basal-bolus regimen research and insulin-delivery optimization studies.

Ready to buy?

Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.

Common Stacking Partners

Exendin-4 stacks with:

SGLT2 inhibitorsDPP-4 inhibitorsdiet and exercise

Insulin Glargine stacks with:

Insulin LisproInsulin Aspart
GLP-1 agonistbeta-cell protectionincretinbasal insulinlong-actingfasting glucose