dosing schedule retatrutide Dosing: Administration Guide 2026 Doctor Explains How to Dose

The zoomed-in view of the ligand is also shown (PDB ID 4ZW9)

The trial, TRIUMPH-4, reported a mean body-weight reduction of 28.7% at 68 weeks in participants taking the 12 mg weekly dose

Recommended injection sites include the abdomen (avoiding 5 cm around the navel), outer thigh, and outer upper arm

Starting retatrutide at full maintenance doses after being on high-dose tirzepatide can lead to excessive GI side effects because of the additional glucagon receptor stimulation

Complete blood count catches elevated hematocrit (red blood cell concentration), which can increase stroke and clot risk if unaddressed

Microdosing is not an official medical term