User Reviews for Fiasp U-100 Insulin subcutaneous

In the near 38 years I’ve been a type 1 diabetic I have never had such a severe reaction to any other insulin my insurance stopped covering novolog I started fiasp April 7 and it took 20 to 25 minutes to start working, 18 hours after I had started it in my insulin pump I had to nearly double my basal rate and increase boluses just to get to 260 as I started having to bolus more I started having severe effects to my heart my blood pressure would drop my face would go white I felt like I wasn’t getting enough blood or oxygen to my heart then my blood pressure would rise rapidly causing heart palpitations I felt dizzy and light headed nausea and a massive headache on top of the niacin flush rather than risk dka and heart failure I still have some novolog I immediately contacted my doctor and switched back to novolog and symptoms are subsiding and resolving when I changed my infusion set and site I noticed a very large and hard lump that barely 72 hours of fiasp had caused this medication should be pulled the additives in it to make it work faster are what makes this insulin a life threatening danger for the many affected.Read More Read Less

My belly is growing faster like a pregnant women. I have changed a dress size twice in one year only for the big abdomen. My bust, shoulders and hips have not changed. It's frustrating. Does anyone know if my body will go back to normal when I go back to apidra..

This insulin is well within date and has been refrigerated since I got it from the pharmacy and it does not work. When I called the company they do not offer to send me a replacement bottle or vial, however they do request I send it back for study purposes only, but they do not replace it….?!?!? I paid for it and it does not work. I had a 238 BG at 11AM and have taken 4 units (1u@time) and it is now 3:50PM, with no BG drop, this is unacceptable and damaging to my body.

I have been using Fiasp for a few years now due to it being the only rapid acting insulin that my insurance will cover. This insulin is worthless. It doesn’t ever lower my blood sugar accurately. Sometimes it lowers my sugars too much and sometimes not at all. Many of the pens do not work at all and I end up throwing them away after a few injections. My A1C has gone up since using this garbage. I would switch back to Humalog in a second if I could. Stay far away if possible.

After years of Novolog, my endo switched me to Fiasp. My experience with Fiasp was very erratic control, with periods of no response to repeated Fiasp injections Some pens would work, some were like injecting water. Been TiD for 46 years, and Aic’s typically run under 6, so my body’s reaction of elevated BG with no response to Fiasp was quickly noticiable. Not for me.

This medication seems to be very unreliable in lowering glucose levels and very unpredictable onset and duration

Was given Fiasp to help with post food spikes. It lowered my blood sugar no faster than Novo Rapid. After just 8 days I have developed a painful full badly rash. I have stopped use of this insulin.

As good as the insulin is I hate with a passion the crap plastic insulin pens I have atleast 5 half full but the plunger snaps just behind it now I have one which is just Brocken behind your dosage selection please fix your poorly designed pens I don't like being out with high sugar levels and not have a reliable source

I have had alot of pens that don't work at all. I find every box has at least 1 that will not lower my sugar. At first I really liked it they seem to have dropped there standards.

I've been using Fiasp for the past year and it has been the best fast acting insulin I have tried. I've always struggled with post meal spikes because the carbs would kick in way before the insulin. Since I've been on Fiasp my spikes are much lower and because it's faster acting, I can take a corrective dose sooner, if needed. My A1C has dropped significantly.

I've been using Fiasp for the past year and it has been the best fast acting insulin I have tried. I've always struggled with post meal spikes because the carbs would kick in way before the insulin. Since I've been on Fiasp my spikes are much lower and because it's faster acting, I can take a corrective dose sooner, if needed. My A1C has dropped significantly.

It was not lowering my sugars and they were staying at high numbers. I tried it for a few months to see if it would change, but my blood sugars seemed to stay at high numbers and then many hours later, at about 4am, my sugar would dramatically drop. I went back to Novolog and my sugars are more controlled and have lowered tremendously.

Does not work at all to lower my blood sugar. Sugar stays very high and actually rises after taking Fiasp. The only result I see is ultra lows 6 to 10 hours later. Going back to Novolog. This insulin is pure garbage. Do not recommend.