Any nice jobs for Veterinary Sales Officers

Hi 

I am currently attached with Mankind Pharma Ltd. Vet section for last 2 years but I want to switch over to any other MNC as Veterinary sales officer. Is there any future prospect for me? Or can I change my field from Vet. to Human? Are there any other opportunities for me? Should I switch over to other company or not? If anybody could help out it would be a great help.