Drug Comparisons
Understand how retatrutide compares to other medications in the incretin and metabolic therapy space. Our comparisons examine mechanism of action, receptor activity, clinical efficacy, side-effect profiles, and development status using published evidence.
Featured Comparisons
Retatrutide vs Bariatric Surgery: Can a Triple Agonist Match Surgical Weight Loss?
Retatrutide's trial weight loss compared with gastric bypass and sleeve gastrectomy: how much weight, how long it lasts, the risks, and who each suits.
Retatrutide vs CagriSema: Next-Generation Obesity Drugs Compared
Retatrutide (Lilly) vs CagriSema (Novo Nordisk): Phase 3 weight loss, how the drugs work, side effects and where each one stands with regulators.
Retatrutide vs Zepbound: Which Eli Lilly Drug Produces More Weight Loss?
Retatrutide vs Zepbound, both from Lilly: about 28% weight loss in Phase 3 vs 22.5% in SURMOUNT-1, side effects, and the TRIUMPH-5 head-to-head trial.
Retatrutide vs Wegovy: Weight Loss Comparison, Side Effects & Differences
Retatrutide vs Wegovy (semaglutide 2.4 mg): Phase 3 weight loss, side effects, how each drug works, and when retatrutide might be available.
Retatrutide vs Ozempic: How the Triple Agonist Compares to Semaglutide
Retatrutide vs Ozempic (semaglutide): weight loss and A1C, including the TRANSCEND-T2D-2 head-to-head trial, side effects and who can get each drug.
Retatrutide vs Tirzepatide: Weight Loss Results, Mechanism & Key Differences
Retatrutide vs tirzepatide (Zepbound, Mounjaro): weight loss in Phase 3, how a triple agonist differs from a dual one, side effects and availability.
Retatrutide vs Semaglutide: Triple Agonist vs GLP-1 Compared
Retatrutide vs semaglutide (Wegovy, Ozempic): weight loss, the first head-to-head diabetes trial, side effects, liver fat and approval status.
All Comparisons
Retatrutide vs Liraglutide (Saxenda): A Comparison
How retatrutide's triple agonist mechanism compares with liraglutide (Saxenda) on weight loss, dosing, side effects and availability.
Retatrutide vs Phentermine: Old Guard Meets New
Retatrutide vs phentermine, the most prescribed weight-loss drug in the US: how much weight people lose, side effects, cost and how each works.
Retatrutide vs Orforglipron (Foundayo): Triple Agonist vs Oral GLP-1
Retatrutide, a weekly triple-agonist injection, vs orforglipron (Foundayo), Lilly's daily GLP-1 pill: weight loss, side effects and availability.
Retatrutide vs Mounjaro: Triple Agonist vs Dual Agonist for Diabetes
Retatrutide vs Mounjaro (tirzepatide) for type 2 diabetes: A1C and weight results from TRANSCEND and SURPASS, side effects, and approval status.
Retatrutide vs Survodutide: Comparing Two Glucagon-Containing Agonists
Two drugs that use glucagon: retatrutide (Lilly, triple agonist) and survodutide (Boehringer, dual agonist). Weight loss, liver data and where each stands.