Weight Gain is a Common Issue with Antidepressants, But Buproprion is an Exception

October 3, 2016 · Posted in Current Treatments 

weight gain on antidepressants

A 2016 study by researcher David Arterburn and colleagues in the Journal of Clinical Medicine suggests that taking an antidepressant for two years is associated with an increase in body weight. Luckily, bupropion (trade name Wellbutrin) is an exception that may be a good choice for obese or overweight patients.

The researchers analyzed links between which antidepressants patients in a large health system in Washington State were prescribed and their body weight two years later.

The researchers used fluoxetine (Prozac) as a reference. Most antidepressants did not differ significantly from fluoxetine in terms of the weight gain experienced by people taking the drug.

There were a few exceptions. Compared to non-smoking fluoxetine users, who gained an average of 4.6 pounds in two years, non-smoking bupropion users actually lost weight—an average of 2.4 pounds. (Smokers taking bupropion still gained an average of 6.9 pounds.)

Sertraline (Zoloft) was another exception. Sertraline users gained more than users of other antidepressants—an average of 10.5 pounds over two years.

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