It’s not known if Januvia causes cancer.
One study found that higher doses of Januvia were related to a higher risk of pancreatic cancer. Researchers suggest keeping Januvia doses at less than 100 milligrams (mg). But more evidence is needed to confirm this recommendation.
Another study suggested that certain people may have a higher risk of thyroid cancer with Januvia. But more evidence is needed to support this, too.
According to another study, Januvia may reduce the risk of breast cancer in people with diabetes. But these findings require more study as well.
If you have concerns about your risk of cancer with Januvia, talk with your doctor or pharmacist.