Hormonal
GLP-1 receptor agonists (specifically semaglutide and liraglutide) are the most effective pharmacological interventions for weight loss, producing significantly greater total body weight loss than other FDA-approved anti-obesity medications.
If you have obesity, lifestyle changes alone are rarely enough for long-term success due to your body's biological resistance. Semaglutide (Ozempic/Wegovy) is currently the most effective drug available, helping patients lose an average of 12.4% of their body weight when combined with diet and exercise. It requires a weekly injection. If cost is a barrier, discuss insurance coverage (sometimes available for diabetes) or cheaper alternatives like phentermine-topiramate with your doctor. The goal is to find a regimen you can tolerate and afford for the long term.
Semaglutide is the most effective agent. Phentermine-topiramate, naltrexone-bupropion, liraglutide, lisdexamfetamine, and pramlintide are also associated with a high percentage of total body weight loss. Orlistat, topiramate alone, metformin, and sodium-glucose cotransporter-2 (SGLT-2) inhibitors are associated with a more modest weight loss.
Why this rating
Based on multiple randomized controlled trials (RCTs) cited in Table 3 (e.g., STEP 1, STEP 2).
Source
Antiobesity drug therapy: An individualized and comprehensive approach
Yael Mauer et al. · Cleveland Clinic Journal of Medicine · 2021
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