Novartis has entered into an agreement with Takeda to acquire the dry eye drug Xiidra (lifitegrast ophthalmic solution) for $5.3 billion. Deal includes $3.4 billion paid upfront with potential milestone payments of up to $1.9 billion. Also, as part of the agreement, Novartis will be taking on approximately 400 employees associated with the product.   Xiidra is the first and only prescription treatment approved to treat both signs and symptoms of dry eye by inhibiting inflammation caused by the d...