causes rash or hives. kidney problems sometimes requiring dialysis have been reported. using januvia and a sulfonylurea or insulin together may cause low blood sugar. to reduce the risk, your doctor may prescribe a lower dose of the sulfonylurea or insulin. your doctor may perform blood tests before and during treatment to check your kidneys. if you have kidney problems a lower dose may be prescribed. side effects may include upper respiratory tract infection, stuffy or runny nose and sore throat, and headache. for help lowering your blood sugar talk to your doctor about januvia today. just you...with the when gray creeps in do you lose it all? not you. new touch of gray mustache and beard reduces gray without getting rid of it all in just 5 minutes.