At the end of 2014, the U.S Food and Drug Administration (FDA) approved liraglutide as a means of chronic weight management. Liraglutide is being marketed by Novo Nordisk, Inc., under the brand name Saxenda. Since 2012, this is the fourth weight loss drug that has been approved by the FDA. In another clinical trial that involved patients with type 2 diabetes, results showed that those who were treated with Saxenda lost 3.7% of their weight compared to those who were treated with a placebo. Furthermore, 49% of those taking Saxenda lost around 5% of their body weight (compared to only 16% of those taking a placebo). Therefore, it appears that Saxenda may be slightly more effective for weight loss in those who do not have type 2 diabetes, although it still had an effect - albeit a smaller one - on weight management for those with diabetes. What Are the Side Effects? The FDA have issued a warning on Saxenda, stating that thyroid tumors have been observed in studies on rodents, but it is unknown whether Saxenda can cause these tumors in humans. Serious side effects in patients taking Saxenda include pancreatitis (inflammation of the pancreas, which can be life-threatening), kidney disease, gallbladder disease, and suicidal thoughts. Furthermore, Saxenda can increase heart rate, and the FDA have advised that it be discontinued in any patient who experiences a sustained increase in resting heart rate. The most common side effects that were seen during the clinical trials were nausea, vomiting, constipation, diarrhea, decreased appetite, and low blood sugar. Who Should Not Take Saxenda? Due to the theoretical risk of thyroid cancer, Saxenda should not be taken by those patients who have a rare endocrine disorder known as multiple endocrine neoplasia syndrome type 2 (MEN-2), or by patients who have a family history of a type of thyroid cancer known as medullary thyroid carcinoma (MTC). Others who should refrain from taking Saxenda include children, women who are pregnant or breastfeeding, and anyone who has ever had a hypersensitivity reaction to liraglutide or to any of the product components of Saxenda. |
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