Research

Adherence

Tirzepatide use is strongly associated with a high frequency of dosing errors, particularly incorrect dose administration, which increases significantly over time and correlates with strong statistical safety signals.

If you are using tirzepatide, be aware that dosing errors are the most common side effect reported. The once-weekly schedule and mandatory dose increases can be confusing. Use a calendar or app to track your injections and strictly follow the titration steps to avoid mistakes.

ModerateSupportsMEDIUM confidence
Incorrect dose administration was the top AE, increasing 8-fold from 1248 (2022) to 9800 (2024), with strong risk signals (ROR 22.15... and PRR 16.80...)
Hadi A. Almansour et al. · Healthcare · 2025

Why this rating

Data is from a spontaneous reporting system (FAERS), which is prone to underreporting and bias, though the statistical signals (ROR/PRR) are strong.

Source

Real-World Safety Concerns of Tirzepatide: A Retrospective Analysis of FAERS Data (2022–2025)

Hadi A. Almansour et al. · Healthcare · 2025

DOI 10.3390/healthcare13182259

cohort · n=65974Cited 2×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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