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Other side effects included decreased appetite and fatigue

Despite this, its biological effects on gene expression and telomerase activation persist for extended periods, suggesting a hit-and-run mechanism where transient peptide exposure triggers sustained downstream signaling

The relatively fast absorption and clearance of nasal peptides means multiple smaller doses can maintain more consistent blood levels than a single large dose

Retatrutide is an investigational compound and is not approved for human use in any jurisdiction as of April 2026

Control bladder tissues were obtained from normal-appearing mucosa of patients with nonmuscle-invasive bladder cancer (NMIBC), collected from sites distant from the tumor