SynthesisMedical sciences (Basel, Switzerland)2026
Cutaneous Adverse Events Associated with Semaglutide, Liraglutide and Tirzepatide: A Systematic Review.
Synthesis in Medical sciences (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesIncretin-based therapies, including glucagon like peptide-1 receptor agonists (GLP-1 RAs) and glucose-dependent insulinotropic polypeptide (GIP)/GLP-1 RAs, are increasingly prescribed for obesity, leading to greater recognition of associated dermatological adverse events (AEs). We aimed to characterize the spectrum, frequency, and clinical characteristics of cutaneous AEs reported with semaglutide, liraglutide and tirzepatide, focusing on these agents because of their established use in both weight management and diabetes mellitus.
methodsA systematic literature search was conducted in MEDLINE (via PubMed), Embase, and Web of Science. Search terms combined skin-related manifestations (e.g., skin, dermatologic, injection-site reactions, pruritus, rash, hypersensitivity, dysesthesia, vasculitis) with GLP-1 RA and GIP/GLP-1 RAs (semaglutide, tirzepatide, liraglutide). Clinical trials, observational studies, pharmacovigilance studies, and case reports reporting skin-related AEs associated with semaglutide, liraglutide and tirzepatide were included.
resultsOne hundred and one studies were included (32 randomized controlled trials, 6 retrospective cohort/cross-sectional studies, 20 pharmacovigilance studies, and 43 case series/reports). Cutaneous AEs ranged from generally common but mild reactions to rare but potentially severe immune-mediated disorders. Injection-site reactions, including erythema, pruritus, and hemorrhage, were reported most frequently with tirzepatide (2-7%), then liraglutide, and less commonly with semaglutide, with evidence of dose dependence. Dysesthesia was most strongly associated with semaglutide, occurring in approximately 5% of patients at standard doses and up to 20% with high-dose formulations indicated for weight management, with events frequently occurring during dose escalation. Uncommon reactions reported in association with GLP-1 or GIP/GLP-1 RA use included angioedema, hypersensitivity reactions, autoimmune blistering diseases, drug eruptions, vasculitis, and severe cutaneous reactions.
conclusionsAlthough most cutaneous AEs associated with GLP-1 and GIP/GLP-1 RAs are mild and manageable, clinically relevant drug-specific differences exist. The recognition of common and uncommon skin manifestations may facilitate earlier diagnosis, support treatment adherence, and reduce the adverse outcomes.
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