A bacteria grown insulin
intended for injection
. This is the heavy hitter in the insulin
world. It takes effect
slowly and keeps lower
ing blood sugar
for about twelve hours.
This is the type that I have to be very careful with since I tend to forget that it's working and end with crashing blood sugar levels (hypoglycemia).
When I've been particularly poor I've had to go without this type (no insurance) and the long term effects are frightening. This type of insulin is the stabilizer that lets you eat without worrying about the sugar content of each bite. Without the diesel like power of it I end up taking insulin shots three or four times a day.
It is also a suspension and needs to be shaken so that the liquid in the vial is uniformly cloudy before use.