In the long list of molecules many jumped out as my favorite, but then I remembered something I learned when I was interning at a local Vet's office. The popular dry eye drug, Restasis, started as a veterinary medicine for treatment of the same condition in dogs. It is one of a few to make the jump from veterinary use to human use
Cyclosporine is used as a broad anti-inflamatory and in the form of Optimmune helps to reduce damage to tear glands and help in the stimulation of tear production. It is used in dogs only to treat the condition known as keratoconjunctivitis Sica (KCS or dry eye).
This may seem like a strange molecule to choose as my favorite, but I've seen firsthand the drug in action and how much it an improve a dog's wellbeing. My ultimate goal is to be a Veterinarian and seeing the happy smiling face of a dog treated for dry eye is very rewarding.