No transgenic milk today

It seems the would be first market available drug produced in a transgenice farm animal, is not going to market in Europe (yet).

"The European Medicines Agency's (EMEA) decision back in February on recombinant human antithrombin-, an anticoagulant developed by GTC Biotherapeutics, was eagerly awaited because the product, known as Atryn, if approved, would be the first drug produced in a transgenic farm animal to reach the market. In the event, the EMEA did not approve the product, but not because of any direct concerns about its animal origins. Atryn was rejected because GTC simply did not present enough appropriate data to allay EMEA's concerns about its immunogenicity."

Read "Transgenic milk prospects turn sour", in Nature Biotechnology 24, 368 (2006)