Cymbalta is a prescription medication used to treat both depression and fibromyalgia. Despite its effectiveness, Cymbalta poses a risk for side effects in some patients, including weight gain.
While patients who take Cymbalta for depression typically lose weight, there is a potential for weight increases in patients who take the drug for fibromyalgia, according to RxList. Doctors have not discerned the reasons for this discrepancy.
Approximately 2 percent of patients who take Cymbalta for fibromyalgia gain weight.
The average weight gain of patients taking Cymbalta for fibromyalgia is 1.54 pounds over 26 weeks.
Although the weight gain from Cymbalta is not significant, it can pose a threat to patients who are already obese because of the increase in their body mass index. The higher a person's BMI, the more at risk he is for developing certain types of cancer, type 2 diabetes, heart attacks and stroke, according to the Weight Control Information Network.
Proper exercise and a well-balanced diet help minimize the weight gain from Cymbalta. If you are concerned about gaining weight, talk to your doctor or a dietitian.