What medications cause weight loss
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Medications That Cause Weight Loss: A Comprehensive Overview
Anti-Diabetic Drugs and Weight Loss
Metformin, Acarbose, and GLP-1 Agonists
Anti-diabetic medications have shown varying degrees of efficacy in promoting weight loss among patients with type 2 diabetes. Metformin, acarbose, and GLP-1 receptor agonists like liraglutide and exenatide are particularly notable. Metformin and acarbose are associated with mild weight loss, typically less than 3% of initial body weight 13. GLP-1 receptor agonists, such as liraglutide and semaglutide, have demonstrated more substantial weight loss, often exceeding 5% of initial body weight 13.
SGLT2 Inhibitors
SGLT2 inhibitors, including canagliflozin, dapagliflozin, and empagliflozin, also contribute to weight loss. These medications generally result in moderate weight loss, ranging from 3.2% to 5% of initial body weight . Their mechanism involves promoting glucose excretion through urine, which indirectly reduces body weight.
Anti-Obesity Medications
Phentermine/Topiramate and Naltrexone/Bupropion
Phentermine combined with topiramate and the combination of naltrexone with bupropion are effective anti-obesity medications. Clinical trials have shown that phentermine/topiramate can lead to a weight reduction of up to 6.8%, while naltrexone/bupropion results in a 4% reduction 45. These medications work by suppressing appetite and increasing energy expenditure.
Orlistat
Orlistat, a lipase inhibitor, prevents the absorption of dietary fats and is associated with a weight loss of approximately 2.9% 45. It is one of the few medications approved for long-term use in both adults and adolescents.
Antidepressants and Weight Loss
Bupropion and Fluoxetine
Certain antidepressants, such as bupropion and fluoxetine, have been linked to weight loss. Bupropion is associated with a weight loss of about 1.3 kg, while fluoxetine can lead to a similar reduction, particularly in the acute phase of treatment 238. These medications are believed to influence neurotransmitters that regulate appetite and energy balance.
Other Medications
Topiramate and Zonisamide
Topiramate and zonisamide, primarily used for epilepsy and migraine prevention, have also been found to induce weight loss. Topiramate can result in a weight loss of approximately 3.8 kg, while zonisamide can lead to a more significant reduction of around 7.7 kg 23.
Conclusion
Various medications, including anti-diabetic drugs, anti-obesity medications, and certain antidepressants, have been shown to cause weight loss. The degree of weight loss varies depending on the medication and its mechanism of action. While these medications can be effective, it is essential to consider their potential side effects and long-term safety. Clinicians should tailor treatment plans to individual patient needs, considering both the benefits and risks of each medication.
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