Tresiba® may cause serious side effects that can be life-threatening, including:
- Low blood sugar (hypoglycemia). Signs and symptoms that may indicate low blood sugar include dizziness, light-headedness, sweating, confusion, headache, blurred vision, slurred speech, shakiness, fast heart beat, anxiety, irritability, mood changes, and hunger.
- Low potassium in your blood (hypokalemia)
- Heart failure in some people if taken with thiazolidinediones (TZDs). This can happen even if you have never had heart failure or heart problems. If you already have heart failure, it may get worse while you take TZDs with Tresiba®. Tell your health care provider if you have any new or worse symptoms of heart failure including shortness of breath, tiredness, swelling of your ankles or feet, and sudden weight gain
Your insulin dose may need to change because of change in level of physical activity or exercise, increased stress, change in diet, weight gain or loss, or illness.
- Common side effects may include serious allergic reactions (whole body reactions), reactions at the injection site, skin thickening or pits at the injection site (lipodystrophy), itching, rash, swelling of your hands and feet, and weight gain.
Get emergency medical help if you have trouble breathing, shortness of breath, fast heartbeat, swelling of your face, tongue, or throat, sweating, extreme drowsiness, dizziness, or confusion.