Side effects

Tirzepatide (Mounjaro, Zepbound) - side effects

Side-effect profile resembles Semaglutide but with slightly higher nausea and diarrhea rates due to added GIP (hormone that improves insulin sensitivity) activation. SURMOUNT-1 reports transient gastrointestinal signal in 60-70% of participants during the first 12 weeks.

Documented effects

Sorted by severity. Source cited when published.

Pancreatitis

severe·rare

Nausea

moderate·common·SURMOUNT-1

Diarrhea

moderate·common·SURMOUNT-1

Vomiting

moderate·common

Constipation

mild·common

Injection-site reaction

mild·uncommon

Contraindications

Family history of MTC or MEN-2.

Dosing

Tirzepatide dosing protocol

Encyclopedia

Full scientific profile for Tirzepatide

Disclaimer: data is curated from research literature for in-vitro experiments. This is not medical advice.

Last reviewed: 6 May 2026by PeptidLabs Editorial

Side effects

Tirzepatide (Mounjaro, Zepbound) - side effects

Documented effects

Sorted by severity. Source cited when published.

Pancreatitis

severe·rare

Nausea

moderate·common·SURMOUNT-1

Diarrhea

moderate·common·SURMOUNT-1

Vomiting

moderate·common

Constipation

mild·common

Injection-site reaction

mild·uncommon

Contraindications

Family history of MTC or MEN-2.

Dosing

Tirzepatide dosing protocol

Encyclopedia

Full scientific profile for Tirzepatide

Disclaimer: data is curated from research literature for in-vitro experiments. This is not medical advice.

Last reviewed: 6 May 2026by PeptidLabs Editorial