| Michelle--Hi, and welcome! I switched to a Novolog insulin pen from the Humalog pen over a year ago. The reason for my switch was that, at the time, the only pen that would measure in half units was the Novopen Junior--yep, a KIDS' pen! But, being a small body weight and very sensitive to small amounts of insulin, I felt I could get better control if I could inject by half-unit measurements (that's the only thing I missed about the syringe!) By the way--I love this kiddy pen--it's all cool colors and swirly patterns... Anyway, I found virtually NO difference between the 2 insulins, in terms of speed of delivery, duration of action, consistancy, etc. If anything, I'm maybe a bit more stable on the Novolog than I was on the Humalog, but it's difficult to really say, plus I take a bit less of the Novolog than I needed of the Humalog. Can't exaxtly explain that either. They say that the Novolog is better in a pump because it tends to crystalize less, therefore clogging the cannula less and allowing your site to last somewhat longer. I believe it's a bit more temperature-stable as well, so that wearing you pump close to your body, and thus having your body-heat warm up your reservoir won't have as much of an effect on its potency. At least, that's what they say!
Michael
Type 1 since 1965  | 
