Research

Hormonal

Initiating anti-obesity medications more than 12 months after bariatric surgery is associated with a significantly lower risk of adverse events compared to initiation within the first 12 months.

If you are considering weight loss medication after bariatric surgery, current evidence suggests it may be safer to wait until at least 12 months have passed since your surgery. Starting medication earlier is associated with a much higher risk of adverse events, though this may be partly due to the natural recovery period of the surgery itself rather than the drug alone.

ModerateQualifiesMEDIUM confidence
AOM initiation ≥ 12 months after surgery was associated with lower risk of AEs compared to <12 months (aOR 0.01. [95% CI 0.0 – 0.01], p<0.001).
Jason M. Samuels et al. · medRxiv · 2024

Why this rating

Retrospective cohort study; strong statistical association but observational design limits causal inference regarding the specific cause of early AEs.

Source

Adverse Event Comparison between Glucagon-like Peptide-1 Receptor Agonists and Other Anti-Obesity Medications Following Bariatric Surgery

Jason M. Samuels et al. · medRxiv · 2024

DOI 10.1101/2024.04.21.24306138

preprint · n=599Cited 1×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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