Omnitrope is Made by Sandoz, a division of Novartis, and is available in various presentations. It is one of the most popular brands with an appealing competitive price and easy-to-use pen format. Omnitrope also has a vast support resource with videos to help understand and use the Omnitrope Pen in the comfort of your home. They also provide storage information and much more. This link is in the information below.