Insomnia is not listed among common adverse reactions in FDA prescribing information for Mounjaro or Zepbound, and clinical trials did not identify it as a statistically significant side effect
The disease often presents with subtle or non-specific symptoms, which may lead to delayed diagnosis and, consequently, increased morbidity [3]
Another limitation of many of the cited studies was that although the majority of the authors gave justification for research (hypothesis specifically was not always outlined), they did not appear to critically evaluate their own methodologies
The theoretical risks are minor metabolic shifts (free fatty acid mobilization) and injection-site effects
This creates a concentration of 5mg per mL, making dose calculations straightforward
The FDA added it to injectable semaglutide in January 2025, and it climbs the dose axis like everything else. Burning or tingling skin tracks the dose, not the weight lost, and an active-comparator study put the risk about twice that of another weight-loss drug. The mechanism remains unsettled