Back to Ask the Diabetes Team Ask the Diabetes Team

From Ontario, Canada:

My 12 year old son recently switched from NPH to Ultralente, combined with Humalog. Now, his syringes seem to be clogging during injection quite often. We started to withdraw the U from the vials before the H (instead of the other way around as we always have) and this seems to have helped minimize the clogging. Is drawing up the insulins in this order safe?


It does not matter in which order the insulins are drawn as long as you are careful and do not inject any of the cloudy Ultralente into the clear bottles of Humalog (or Regular for that matter). I do not know why it would matter in your syringes either but do what works.


[Editor's comment: Ultralente does tend to precipitate out very quickly. In agreement with Dr. Brink, it is extremely important not to get any of it (even a small drop) into the fast-acting insulin as it will change the action. Continually rolling the syringe after you have drawn up the U should eliminate the problem. SS]

Original posting 30 Sep 2000
Posted to Blood Tests and Insulin Injections


  Back to Ask the Diabetes Team Return to the Top of This Page

Last Updated: (none)
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.

This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents. Our mission is to provide education and support to families living with type 1 diabetes.
By using this site, you agree to our Terms of Use, Legal Notice, and Privacy Policy.
© Children with Diabetes, Inc. 1995-2018. Comments and Feedback.