Hi Everyone! I'm inquiring about my cat, Murphy. He was first diagnosed with Feline Diabetes in October, 2009. His Vet put him on Lantus. I was instructed by his Vet to gently "Roll" the vial of Lantus between my hands before each use. Within 6 weeks he was in remission. Sadly, in August, 2010 he was again diagnosed and was put back on Lantus. When I was picking up the Lantus at my Pharmacy, the Pharmacist told me not to "Roll" the Lantus, that it wasn't necessary with this type of Insulin and that it could, in fact, alter the potency of it. It's been almost a year now since Murphy was re-diagnosed and I'm wondering if I should have been rolling the vial all of this time like I did the first time with the possibility of him going into remission again. I'm at a loss!!!! Can you steer me in the right direction!!! Thanks so much, Terry and Murphy.