Humulin 70/30 is a mixture of 70% Human Insulin Isophane Suspension and 30% Human Insulin Injection (rDNA origin). It is an intermediate-acting insulin combined with the more rapid onset of action of Regular human insulin. The duration of activity may last up to 24 hours following injection.
Humulin R U-500 is a kind of insulin that is much stronger than the more common U-100 insulin. About half were also taking metformin. According to Diabetes Self-Management editor Diane Fennell, “the researchers found that people using metformin along with insulin had a 40% reduced risk of death and a 25% reduced risk of major heart problems compared to those using insulin alone