2014-2015: Phase 1 Studies First-in-human trials established safety, tolerability, and pharmacokinetics in healthy volunteers and patients with type 2 diabetes
Changes in the menstrual cycle may include heavier periods, lighter periods, irregular cycles, spotting between periods, or missed periods
This is distinct from the transient nausea common during GLP-1 titration
If thyroid imbalance, elevated cortisol, poor sleep, or inflammation remain unaddressed, results may stall or feel inconsistent
Mild side effects are temporary and usually subside over time
Final Thoughts Retatrutide represents a significant advancement in obesity and metabolic disease treatment, offering unprecedented weight loss outcomes through its innovative triple-receptor mechanism