Sandoz is making about 1 million $ per day from Lovenox. 6 Weeks = 42 Days. (40 million / 42 days) = ~1 million $'s per day! All that work for only a million a day. (for now)
Keep in mind that data is for the "next six weeks".
The first two weeks likely stuffed the channel. They started shipping the same day they got approval. To do that they had to have orders ready to go.