Research

Hormonal

Anti-obesity medication (AOM) administered in primary care settings produces approximately double the weight loss (-2.94 kg) compared to non-pharmacologic interventions, but efficacy attenuates over time at a rate of 0.44 kg per six months.

If you are seeking weight loss in primary care, expect that adding medication to lifestyle changes will roughly double your weight loss compared to lifestyle changes alone. However, be prepared for this to be a long-term commitment; stopping the medication often leads to regaining the weight because your body fights to maintain the lower weight. Consistency and long-term use are key to maintaining results.

ModerateQualifiesLOW confidence
Interventions that included a medication component (alone or as part of a multipronged intervention) achieved a greater weight reduction by -2.94 kg (p<0.0001)... efficacy of interventions with drug components attenuated at a rate of 0.44 kg/6months, 95%CI (0.34-0.53 kg/6 months, p-value <0.001).
Leigh Perreault et al. · medRxiv · 2022

Why this rating

Meta-analysis of 7 RCTs, but with substantial heterogeneity (I2=86%) and evidence of publication bias.

Source

A closer look at weight loss interventions in primary care: A systematic review and meta-analysis

Leigh Perreault et al. · medRxiv · 2022

DOI 10.1101/2022.08.03.22278290

Meta-analysis · 7 studies
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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