What side effects may I notice from receiving Tresiba?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-signs and symptoms of high blood sugar such as dizziness, dry mouth, dry skin, fruity breath, nausea, stomach pain, increased hunger or thirst, increased urination
-signs and symptoms of low blood sugar such as feeling anxious, confusion, dizziness, increased hunger, unusually weak or tired, sweating, shakiness, cold, irritable, headache, blurred vision, fast heartbeat, loss of consciousness

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-increase or decrease in fatty tissue under the skin due to overuse of a particular injection site
-itching, burning, swelling, or rash at site where injected

This list may not describe all possible side effects for Tresiba. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.