Novo Nordisk got rejected by USA (something to do with 'insulin'), which is why we have such a high decline in price(the market overreacting to news). It is not uncommon to be rejected the first couple of times, but If you want to make some money in the medium-long term, this stock is something to consider!
Novo Nordisk is an overall solid stock! Second most traded stock in Denmark(right after Genmab).