In 2021, the FDA approved a new insulin drug, Semglee, that was interchangeable with a brand-name insulin called Lantus.

Express Scripts even blocked both the branded reference product – Lantus - and the lower-priced ... as a percentage of the list (not net) price – will then pay more out-of-pocket.

Sanofi's rivals in the insulin field are nipping at its heels – Lantus sales dipped 5 per cent in the first half of 2015, and analysts don't expect Toujeo to make up for its decline.

The average wholesale prices of the originator insulin are around ... to secure FDA approval for a biosimilar product version of Lantus – Semglee – that is completely interchangeable with ...