Insulin types

By camerashy Latest Reply 2011-06-30 20:11:24 -0500
Started 2011-06-30 19:10:54 -0500

I don't know what the difference is between 70/30 and 75/25. I was on the 70/30 for years, then the company I work for changed insurance companies, and their drug program wouldn't cover the 70/30 (?) so my doctor changed me to the 75/25. I believe the brands are what the problem was. But I never noticed a difference in my control. . . which is somewhat out of control anyway. (If I could just keep my mouth shut!) Does anyone know the difference, and why it should make so little difference in my BG levels?

3 replies

majikinfl 2011-06-30 19:31:05 -0500 Report

70% insulin aspart protamine suspension and 30% insulin aspart injection or 70% NPH a medium acting insulin and 30% regular Insulin a short acting insulin[Novolog, Humulin, Novlin etc]
75% insulin lispro protamine suspension and 25% insulin lispro injection [Humalog]
You are correct it is likely the Brand…my insurance all insulins except Novolog are Tier 3 and the co-pay is more. The larger number is a long or medium acting insulin and the small number is a fast or rapid acting insuling, rapid acting requires eating in 10-15, short acting requires eating within 30 min. I like to take mine either mid meal or just after but always with some food. Hope this helps a little.

camerashy 2011-06-30 19:45:57 -0500 Report

The only thing in there that I understood was the time in which you're supposed to eat - but I've been told to make sure I eat within 15 minutes (before or after) when using either. So, OK - is the one I'm using shorter acting than the one I WAS using?

kdroberts 2011-06-30 20:11:24 -0500 Report

They are very similar. insulin aspart is novolog, insulin lispro is humalog. They are both rapid acting mealtime insulin. Novolog usually lasts a little longer, 30-60 mins or sobut humalog usually hits it's peak effectiveness sooner. The 70% and 75% parts are NPH insulin which is an older insulin which takes longer to work and lasts a lot longer. The protamine part is just the technical name and the aspart/lispro bit is just the proprietary formula they use to make it.

Unless you are taking massive amounts, the 5% difference each way won't make much of an impact in your control. The difference in speed and length of action between the novolog you were using and the humalog you are now using may cause some noticeable changes.

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