Use a 1:1 Ratio When Switching from Insulin Degludec to Glargine or Detemir

Insulin degludec (Tresiba, treh-SEE-bah) is a new once-daily ULTRA long-acting insulin.

It lasts about 42 hours...compared to about 24 hours for glargine (Lantus) or detemir (Levemir).

You may hear that degludec's longer duration means it doesn't need to be used at the same time every day.

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