When my schedule changes... i want something that delivers. ♪ tresiba® ready ♪ i can take tresiba® any time of day. so if i miss or delay a dose, i take it when i remember, as long as there's at least 8 hours between doses. once in use, it lasts 8 weeks without refrigeration... twice as long as lantus®, which lasts 4 weeks. tresiba® is used to control high blood sugar in adults with diabetes. don't use tresiba® to treat diabetic ketoacidosis, during episodes of low blood sugar, or if you are allergic to any of its ingredients. don't share needles or insulin pens. don't reuse needles. ...