Research

Hormonal

Tirzepatide significantly reduces body weight, BMI, and waist circumference in overweight or obese adults without diabetes compared to placebo.

If you are overweight or obese and do not have diabetes, tirzepatide is a highly effective prescription medication for significant weight loss. It is taken once a week by injection. While it causes side effects like nausea and vomiting in many people, the weight loss benefits are substantial. You should discuss the risks and benefits with your doctor and start with a low dose to minimize side effects.

GoodSupportsHIGH confidence
Tirzepatide was associated with increased proportion of participants achieving weight loss targets, reduced body weight (SMD − 1.61, 95% CI − 2.20 to − 1.02), BMI (SMD − 2.13, 95% CI − 3.08 to − 1.18), WC (SMD − 0.91, 95% CI − 1.14 to − 0.69), and BP versus placebo.
Ligang Liu et al. · International Journal of Clinical Pharmacy · 2024

Why this rating

Based on a meta-analysis of 3 high-quality RCTs with nearly 4000 participants, though limited by the small number of trials.

Source

Efficacy and safety of tirzepatide versus placebo in overweight or obese adults without diabetes: a systematic review and meta-analysis of randomized controlled trials

Ligang Liu et al. · International Journal of Clinical Pharmacy · 2024

DOI 10.1007/s11096-024-01779-x

Meta-analysis · 3 studiesCited 26×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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