Guys firstly Im sorry for the very novice question...but Im confused with something here. Please help. If I had a box of Gentropin with 10x1ml sterile waters and 10x multivial rubber bunged bottles with lysopholised product inside that state 10iu on each multivial....when the 1ml of water is added to the bottle of crystal it makes 1ml or 100iu when drawn into the insulin needle. But why does it say 10iu on the side of the bottle? I just dont understand how to administer a measured amount of 4 iu/day when according to the now loaded syringe there are 100iu/ 1ml of product even tho it says theres 10iu as a crystal. Hope I made sense.Very confused. Please help!! Sorry to b a pain peeps.