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Fiasp.. yay or nae

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This thread is now closed. Please contact Anna DUK, Ieva DUK or everydayupsanddowns if you would like it re-opened.
Type1derful

Type1derful

Member
Relationship to Diabetes
Type 1
Recently my consultant has recommended trying Fiasp. Who’s tried it and what are your thoughts? When I discussed with my nurse he didn’t seem overly keen on the idea and suggested that I researched this more before making the switch
 
Hi and welcome to the forum.

Was there a reason why your consultant suggested trying Fiasp and which bolus insulin are you on now?

I have just moved on to Fiasp from NovoRapid. I find that NR takes ages to get going, on a morning particularly, and I often have to wait an hour or more between injecting and eating breakfast to prevent a spike, which sometimes means I get distracted in the interim period and end up going too low before I remember to have breakfast. Since I started Fiasp 3 days ago I am down to 25mins between injecting and eating breakfast which is a big bonus and about 15mins instead of 20-25 afternoon and evening.
I have Freestyle Libre so I can see when the insulin starts to kick in and therefore time my insulin and food more accurately to keep my BG levels stable.
 
Welcome to the forum @Type1derful

I tried FIASP for 6 months. It was much quicker getting going which made it a lot easier when eating out or at friends. However I started to have to change my cannulas daily and had some nasty skanky sites, so eventually gave in and went back to NR. We all react in different ways and I must have just been allergic to whatever they had added to FIASP to make it quicker to get going.

Ps I love thenusername.
 
rebrascora said:
Hi and welcome to the forum.

Was there a reason why your consultant suggested trying Fiasp and which bolus insulin are you on now?

I have just moved on to Fiasp from NovoRapid. I find that NR takes ages to get going, on a morning particularly, and I often have to wait an hour or more between injecting and eating breakfast to prevent a spike, which sometimes means I get distracted in the interim period and end up going too low before I remember to have breakfast. Since I started Fiasp 3 days ago I am down to 25mins between injecting and eating breakfast which is a big bonus and about 15mins instead of 20-25 afternoon and evening.
I have Freestyle Libre so I can see when the insulin starts to kick in and therefore time my insulin and food more accurately to keep my BG levels stable.
Click to expand...
Hi , I also have this issue in the mornings with my novorapid taking much longer to have any effect. Also I mentioned with my work it’s difficult to pre inject and find that I am always spiking due to this. My nurse mentioned that some Fiasp users find that correctional doses aren’t as effective ? Have you experienced this ?

thanks for the reply 🙂
 
SB2015 said:
Welcome to the forum @Type1derful

I tried FIASP for 6 months. It was much quicker getting going which made it a lot easier when eating out or at friends. However I started to have to change my cannulas daily and had some nasty skanky sites, so eventually gave in and went back to NR. We all react in different ways and I must have just been allergic to whatever they had added to FIASP to make it quicker to get going.

Ps I love thenusername.
Click to expand...
Hi and thank you 🙂 Yeah I am quite nervous about changing insulin to be honest so wanted to get other people’s experiences first. I changed from Lantus to Tresiba 3 years ago and it was a shaky start tbh, but have always been on Novo rapid. I am waiting for appointments to restart to begin the application process for a pump but I will be continuing to use pens in the mean time until appointments get going again so feel like I’m running out of options at the moment. If you don’t mind me asking which pump do you use?
 
Hiya - seriously, whatever make and model of pump you decide on (and what's available at your particular clinic, they don't all do every pump ever invented) - you'll love it!
 
trophywench said:
Hiya - seriously, whatever make and model of pump you decide on (and what's available at your particular clinic, they don't all do every pump ever invented) - you'll love it!
Click to expand...
Hey! I have only warmed to the idea of a pump over the last few years so I am hoping it goes well!
 
When I discussed with my nurse he didn’t seem overly keen on the idea and suggested that I researched this more before making the switch.

I was offered Fiasp and declined it after reading about others’ experiences and googling to get further results. Google Fiasp and “like water” and “unexplained hyperglycaemic results”. There’s also a study showing it causes more premature set changes than Novorapid when used in a pump.

We’re all different and YMMV but your nurse is right. Get all the information and make an informed decision. You could also try Humalog which I find faster than a Novorapid personally.
 
I use Fiasp and have done for 2 or 3 years. It can be a tad unpredictable at times but on the whole very good.
Personally I wouldn't want to use it via a pen due to it's action but obviously everyone is different.

Best bit is you only have to wait 4 mins before you can eat 🙂
 
Have you tried changing to a lower carb breakfast to help overcome the problem of spiking if you aren't able to pre-inject?
I find that if I inject bolus and basal insulins as soon as I get up then do morning ablutions and prep breakfast and have my coffee the Fiasp is then starting to kick in and I can eat. If I stick to 30g carbs or less, I can keep the peak of the spike within my Libre range.
As regards corrections, I haven't really noticed a difference between NR and Fiasp, but my NR has been less effective for corrections over the last 6 months or so, so maybe that is why I am not seeing a difference. I generally follow a low carb higher fat way of eating, so corrections are usually after meals for protein and the advantage of Fiasp will hopefully be that those corrections which are usually just 1-2 units will take effect more quickly than NR, but it is early days yet as I am only on day 4 with it.
It is a long time since I managed to eat breakfast within 3/4hr of injecting and I have had 4 days in a row of 25mins and have hypoed twice in that time as I lost track of time with normally having to wait so much longer. Will need to start setting a reminder until I adjust to this new routine.
 
Type1derful said:
Hi and thank you 🙂 Yeah I am quite nervous about changing insulin to be honest so wanted to get other people’s experiences first. I changed from Lantus to Tresiba 3 years ago and it was a shaky start tbh, but have always been on Novo rapid. I am waiting for appointments to restart to begin the application process for a pump but I will be continuing to use pens in the mean time until appointments get going again so feel like I’m running out of options at the moment. If you don’t mind me asking which pump do you use?
Click to expand...
I am using a Combo pump at present and have done for 8 years. It is a good workhorse that is linked by Bluetooth to the handset so I just tuck my pump away at the start of the day and then don’t need access to it again. As an older pump it does not have the facility to convert to a CGM.

With the FIASP I found I needed to change my cannula every day rather than every 2/3 days and I had very sore sites. It may be easier with MDI as you have more options for sites to use and you haven’t got a needle in you all the time. As @Pumper_Sue has found we are all different and you just have to find what works for you.

I will be switching to the Minimed 780G in 2021. I will be self funding the sensors and go into automode. A big change but I am looking forward to giving this a go.

There are pros and cons for all the different pumps, patch or tubed, Bluetooth or not, alarms with sensors or not, .... Whichever one you use it makes life more flexible and enables you to match your insulin much more closely to what you need. I would never want to go back to MDI.
 
Because I was spiking despite pre bolusing with Humalog, particularly breakfast and lunch, I'm quite happily switching to Fiasp via pens. I'll report on any pros and cons as soon as I've acclimatised. I would have thought it was fairly pointless in a pump, as a fast acting basal is a daft concept.
 
mikeyB said:
Because I was spiking despite pre bolusing with Humalog, particularly breakfast and lunch, I'm quite happily switching to Fiasp via pens. I'll report on any pros and cons as soon as I've acclimatised. I would have thought it was fairly pointless in a pump, as a fast acting basal is a daft concept.
Click to expand...
It might still be useful as you are also blousing with the pump, and the FIASP certainly reduced the amount of time I needed to pre-bolus. I did have to make adjustments to my basal rate profiles to account for the shorter lead in time. I would have stuck with the FIASP if I had not had the reactions at my cannula sites. It was definitely much better for eating out etc.
 
I found and find with Fiasp any meals that contain high fats or protein need to have a bolus split oh and high fibre foods as well.

If I don't split the dose then I'm hit with higher bloods for hours after so need to correct.
Winter months I can last 3 days with a cannula using Fiasp, the warmer weather though it's a change every two days.
 
I pump and have been using Fiasp since the beginning of last year.
It works faster than NovoRapid but I feel not as fast now as it did when I first switched. It’s as if my body got used to it.

I have found it does not survive as long out of the fridge. Typically, I take a vial out and leave it out until it is empty. As I am pretty sensitive to insulin, I only fill my pump to 120 units for 3 days rather than the 200 maximum. Therefore, one vial lasts me a few weeks. I was finding the last pump change was less potent than the others. I assume this is the Fiasp “going off”.

Now I know this, I have not experienced the hypers mentioned above.
 
rebrascora said:
Have you tried changing to a lower carb breakfast to help overcome the problem of spiking if you aren't able to pre-inject?
I find that if I inject bolus and basal insulins as soon as I get up then do morning ablutions and prep breakfast and have my coffee the Fiasp is then starting to kick in and I can eat. If I stick to 30g carbs or less, I can keep the peak of the spike within my Libre range.
As regards corrections, I haven't really noticed a difference between NR and Fiasp, but my NR has been less effective for corrections over the last 6 months or so, so maybe that is why I am not seeing a difference. I generally follow a low carb higher fat way of eating, so corrections are usually after meals for protein and the advantage of Fiasp will hopefully be that those corrections which are usually just 1-2 units will take effect more quickly than NR, but it is early days yet as I am only on day 4 with it.
It is a long time since I managed to eat breakfast within 3/4hr of injecting and I have had 4 days in a row of 25mins and have hypoed twice in that time as I lost track of time with normally having to wait so much longer. Will need to start setting a reminder until I adjust to this new routine.
Click to expand...
Hi , yeah but I also have issues with not being able to pre inject when at work all the time so hoping to get the pump sooner so I can do this more often and not risk having hypo at work if I can’t get away for my break when I expected too etc.
 
helli said:
I pump and have been using Fiasp since the beginning of last year.
It works faster than NovoRapid but I feel not as fast now as it did when I first switched. It’s as if my body got used to it.

I have found it does not survive as long out of the fridge. Typically, I take a vial out and leave it out until it is empty. As I am pretty sensitive to insulin, I only fill my pump to 120 units for 3 days rather than the 200 maximum. Therefore, one vial lasts me a few weeks. I was finding the last pump change was less potent than the others. I assume this is the Fiasp “going off”.

Now I know this, I have not experienced the hypers mentioned above.
Click to expand...
Thanks, I must say although there are good points to Fiasp on the whole from my reading and you guys comments i’m not really sure about trying it now haha! I think I might just stick with my NR and wait patiently for a pump in the meantime. I am going through process of getting Dexcom g6 so fingers crossed I hear back soon regarding this and it will make a massive difference to my control when at work
 
Type1derful said:
Hi , yeah but I also have issues with not being able to pre inject when at work all the time so hoping to get the pump sooner so I can do this more often and not risk having hypo at work if I can’t get away for my break when I expected too etc.
Click to expand...
Having a pump makes no difference to prebolusing. You still have to do it whether you pump or not, unless you are using Fiasp.
 
Yes but I would be able to reduce flow etc if I have given a dose, you can’t do anything once you’ve injected with a pen so hoping it helps in that sense
 
No you can't! - any bolus or correction dose, goes in immediately. Only the basal dose drips into you bit by bit.
 
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