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linda_fernandez2026-04-18

I've been using Insulin Degludec U100 Flxtch PN 3ml for a few months now, and I've noticed some changes in my blood sugar levels. Overall, I'm getting stable readings, but I'm not sure if the side effects I'm experiencing are normal or something to be concerned about. I've experienced some headaches and mild diarrhea, but I've heard about more severe side effects like allergic reactions. Has anyone else had similar experiences, or should I be worried? I'm also curious about the injection site irritations some people mention. I haven't noticed any, so I'm wondering if I might be using it incorrectly.

1 min read
last active 4/18/2026
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Comments (9)

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hannah_washington4/17/2026

A friend of mine had to switch to a different insulin because of severe allergic reactions. It's scary stuff, so definitely keep an eye out for those symptoms.

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priya_sharma4/17/2026

Headaches and diarrhea can be side effects, but they should go away with time. If they persist, it might be worth talking to your doctor about adjusting your dosage or switching medications.

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teresa_henry4/17/2026

I've been on Insulin Degludec for a while and haven't had any major issues. I did notice some injection site irritation at first, but it went away after a few days. Make sure you're rotating your injection sites and cleaning the area thoroughly before injecting.

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frances_pierce4/17/2026

I think the injection site irritation can sometimes be caused by not changing needle every injection. I've found that using a new needle each time has really helped with irritation.

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peter_daniels4/17/2026

I had no idea this insulin could cause such severe allergic reactions. Have any of you experienced anything like that?

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lauren_knight4/17/2026

I've had a few instances of low blood sugar on this insulin, but overall, it's been manageable. Just make sure you're carrying glucose tablets or juice with you at all times.

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joan_kennedy4/17/2026

You should definitely talk to your doctor about the side effects you're experiencing. It's good to be cautious, especially when it comes to insulin. Nobody wants to mess around with their blood sugar levels.

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amber_sherman4/17/2026

If you're experiencing any of the serious side effects listed, don't wait—go to the ER. Better safe than sorry, especially with something as important as insulin.

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sean_williams4/17/2026

I switched to this insulin type and have noticed much more stable blood sugar levels. It's been a game-changer for me, but I did have a mild allergic reaction at first. I contacted my doctor, and they adjusted my dosage. It's important to monitor your symptoms and communicate with your healthcare provider.