I used Novolog as part of my MDI then pump treatment for about2 years before switching to Fiasp last year.
I had decent control over my A1C with Novolog, but I definitely rode the BG roller coaster. A1c was 5.8 to 6.2.
After starting Fiasp, I, like many others, had the outstanding initial results. This was some that I wouldn’t say wore off, but maybe ‘toned down’ would be better term?
Well, about a year worth if Fiasp, running my A1c between 5.6 to 5.8, I was doing good. Then updated to the Basal-IQ on my Tandem X2 and dropped to 5.2!!!
Well, I have been buying Fiasp out of pocket the entire time, as the VA does not have it in it’s formulary as of yet.
Finances change, and I couldn’t justify spending the extra on Fiasp, so I switched back to Novolog for now.
Let me say this, I am back on the BG roller coaster again! And I am not happy about it.
I guess it goes with the saying, you don’t know what you have until it’s gone.
The Basal-IQ and Fiasp were meant for each other! And while Basal-IQ still works with Novolog, it doesn’t balance out the curves nearly as well as it did with Fiasp.
With Fiasp and Basal-IQ, and an A1c of 5.2, I never had any bad, or any even moderate lows. Even though Dexcom would say I might dip into the 50’s, I was really still in the 60’s. So I barely dropped below 70, and that wasn’t often. And very controlled. I rarely had to eat anything for a correction.
Now, with Novolog, I am dropping past 70 in a manner where I can feel it, and it doesn’t feel good. I would say I am venturing into the upper 50’s. But I feel like I MUST correct for these. Control-IQ cannot catch them in time with how Novolog has a longer tail, and the later action itself doesn’t help.
Now, I will say, I haven’t been able to pre-bolus like I should. I try, but my job does not allow for this to happen. The weekends are more forgiving on this.
Also, exercise is a lot harder with Novolog compared to Fiasp. The longer tail makes it hard to take a partial bolus for food compared to how easy it was for Fiasp.
Ok, long winded, but, even after a year or so on Fiasp, ALL the benefits, not just the initially quicker action curve, are still very beneficial to me and my T1.
I didn’t think I would have this much trouble switching back to Novolog. I now realize just how much better Fiasp is for me in giving me a better quality of life that cannot be justified by the cost savings.