What Exactly Is Retatrutide and How Does It Work for Weight Loss Research Retatrutide (also designated LY3437943) is a synthetic 39-amino acid peptide that simultaneously activates three receptor pathways: GLP-1 (glucagon-like peptide-1), GIP (glucose-dependent insulinotropic polypeptide), and the glucagon receptor
The most commonly reported side effects of GLP-1 receptor agonists, documented across multiple large randomized controlled clinical trials enrolling thousands of participants, are gastrointestinal: nausea, vomiting, diarrhea, constipation, and abdominal discomfort, all of which are most commonly reported during the initial titration phase when dosage is being escalated from a low starting point toward a therapeutic target and the body is still adapting to the mechanism of action
Most injectable GLP-1 medications (such as semaglutide injections [Ozempic, Wegovy], dulaglutide [Trulicity], and liraglutide [Victoza, Saxenda]) can be administered at any time of day, regardless of meals
Slows gastric emptying to keep you fuller longer, naturally reducing calorie intake
Hvistendahl MK, Naimi RM, Enevoldsen LH, Madsen JL, Fuglsang S, Jeppesen PB
Expect the most meaningful fat loss during this period