• Please Remember: Members are only permitted to share their own experiences. Members are not qualified to give medical advice. Additionally, everyone manages their health differently. Please be respectful of other people's opinions about their own diabetes management.
  • We seem to be having technical difficulties with new user accounts. If you are trying to register please check your Spam or Junk folder for your confirmation email. If you still haven't received a confirmation email, please reach out to our support inbox: support.forum@diabetes.org.uk

Fiasp - taking a long time to work

It depends what my BG is.
I find it very fast when my BG is at the lower end - when my BG is in the 4s, I need to bolus after eating.
But when my BG is in double figures it can take 90 minutes or more to have much affect.
 
Similar here. If my BG is in the 4s it works pretty swiftly although I still need to prebolus 20-30 mins on a morning before breakfast but I can mostly inject and eat if I am in the 4s at other times of the day. If I am above 8 it starts to get sluggish and above 10 it is like injecting water and I find that I need to inject 2 or 3 small corrections within an hour of each other to bring me down if I am in double figures. It was one of the things I found most challenging with Fiasp, that I needed to break the rules about stacking corrections in order to make it work for me. I am not suggesting other people should do this as it can be dangerous, but I keep a very close eye on my CGM after doing it and ensure I have fast acting carbs to hand just in case I drop too low, I find this strategy works for me. Interestingly even exercise when I am above 10 doesn't seem to help Fiasp work quicker or more effectively, whereas exercise with active Fiasp when my levels are in range will drop me fast.

I find that I have to be quite proactive about keeping my levels below 10 to make Fiasp efficient and effective and I have my high alarm set at 8.2 and if it goes off, I generally inject a correction and if it continues to rise I inject another correction. That said, I follow a low carb way of eating so my levels don't generally spike above 8 unless it is protein release, which is usually much slower than the way carbs release glucose.
 
Sane as @helli @rebrascora above, when bg is high fiasp is slow to react, in normal range it works pretty fast for me, little bit faster than novo did anyway.

Mind even with novo it took forever & a day to come back into normal range when bg was high, only thing that speeds it up is exercise or warm temp like a shower but that's not always convenient.
 
You must log in or register to reply here.
Back
Top