Side effects, from the label
Each page summarises what a medicine’s official label says about common and serious side effects and when to contact a doctor. For investigational drugs and research peptides, we report only what published studies and regulators say.
Tracking side effects
By medicine
Ozempic®
Weekly semaglutide for type 2 diabetes: label table, serious warnings and when to call.
Ozempic® side effectsWegovy® injection
Weekly semaglutide 2.4 mg: the label’s adult table, warnings and recent changes.
Wegovy® side effectsWegovy® tablets
Daily oral semaglutide 25 mg: what the label reports from its trial.
Wegovy® pill side effectsRybelsus®
Daily oral semaglutide for type 2 diabetes: label table and warnings.
Rybelsus® side effectsMounjaro®
Weekly tirzepatide for type 2 diabetes: SURPASS table and warnings.
Mounjaro® side effectsZepbound®
Weekly tirzepatide for weight management: label table and warnings.
Zepbound® side effectsSaxenda®
Daily liraglutide 3 mg for weight management: label table and warnings.
Saxenda® side effectsTrulicity®
Weekly dulaglutide for type 2 diabetes: label table and warnings.
Trulicity® side effects
By active ingredient
GLP-1 medicines (overview)
What the GLP-1 labels have in common, with a sourced side-by-side table.
GLP-1 side effectsSemaglutide
Ozempic®, Wegovy® and Rybelsus® labels side by side.
Semaglutide side effectsTirzepatide
Mounjaro® and Zepbound® labels side by side.
Tirzepatide side effectsLiraglutide
Victoza® and Saxenda® label tables and shared warnings.
Liraglutide side effects
Investigational drugs and research peptides
Retatrutide (investigational)
What the phase 2 and phase 3 trial publications report.
Retatrutide side effectsOrforglipron (Foundayo™)
Daily oral GLP-1: the FDA label table and the ATTAIN-1 trial.
Orforglipron side effectsBPC-157
Three small human studies, a systematic review and FDA’s concerns.
BPC-157 side effectsTB-500
No human exposure data according to FDA; what that means.
TB-500 side effectsPeptides in general
Approved peptide medicines vs research peptides: what the evidence covers.
Peptide side effects
Ozempic®, Wegovy®, Rybelsus®, Victoza® and Saxenda® are trademarks of Novo Nordisk; Mounjaro®, Zepbound®, Trulicity® and Foundayo™ are trademarks of Eli Lilly and Company. PepLabo is not affiliated with either company.
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