which is longer lasting, toujeo or lantus?
There are currently four different long-acting insulin products available: 1  insulin glargine (Lantus), lasts up to 24 hours. 2  insulin detemir (Levemir), lasts 18 to 23 hours. 3  insulin glargine injection (Toujeo), lasts more than 24 hours.  insulin degludec injection (Tresiba), lasts up to 42 hours.