Fiasp FlexTouch Pens (100 units/mL) is a fast-acting type of insulin (insulin aspart) used by adults and children with type 1 or type 2 diabetes. It effectively manages blood glucose (sugar) levels and avoids developing any severe complications.

The Fiasp formulation contains Vitamin B3 (niacinamide) and L-arginine to stabilize the formulation. The type of medication Fiasp produces is called insulin aspart.

It is taken to replace the insulin that is not sufficiently produced by the body and helps properly deliver glucose into cells.

Typically it is prescribed by doctors along with long-acting insulin types and other diabetes medications.

Fiasp insulin should be used as part of a treatment program that should incorporate a proper diet, regular exercise, and weight loss as instructed by your doctor.

By taking Fiasp insulin as part of your diabetes treatment, it may help create a healthier lifestyle.

Please do not share your Fiasp FlexTouch Pens, needles, or syringes with other patients as it can lead to the transmission of blood-borne pathogens. Fiasp FlexTouch Pens should be loaded with Fiasp cartridges.

Ensure you are ordering the correct pen, as there are many forms of FlexTouch pens and cartridges on the market.

Warnings and Precautions

Do not use this medication if you have hypoglycemia.

Notify your doctor immediately if you have any liver, kidney, or heart problems before beginning your treatment.

Pregnant or breastfeeding women should discuss taking this medication with their physician before starting treatment as the dosage may need to be adjusted.

It would be best if you did not stop taking this medication unless instructed by your doctor.

Excessive alcohol consumption can lead to hypoglycemia.

If you miss a dose of Fiasp FlexTouch, you should check your blood sugar levels to ensure they do not become too high (hyperglycemia).

Any changes to insulin type, manufacturer, strength, method of administration, or dosage may cause a predisposition to hypoglycemia or hyperglycemia. All changes to your insulin regimen should be under medical supervision.

Keep in mind; your doctor has prescribed this insulin because it is likely the ideal medication for your condition, and the benefits far outweigh the risks. Most people do not experience any side effects.


A doctor or nurse should instruct you on properly administering this medication by injecting it under the skin (subcutaneously).

It is usually taken either 15 minutes before mealtime or 20 minutes after starting your meal (similar to Apidra). It’s essential to regularly monitor your blood sugar levels and keep track of your results to share this information with your physician to prescribe the ideal dosage.

After 10-20 minutes of injection, it will lower blood sugar levels and last up to 3-5 hours. Ask your doctor about when and where to inject your insulin medication for it to provide optimal effectiveness.

Rotate injection sites to avoid developing hard lumps (lipodystrophy) to a particular area of the body.

Side Effects

Hypoglycemia (low blood sugar) is the most common side effect associated with using Fiasp insulin. To prevent this, it’s essential to consistently administer the correct dosage as advised by your doctor, take the medication with meals and monitor blood sugar levels regularly.

Other common side effects include: allergic reactions at injection sites such as itching, swelling, redness, skin thickening, or hard lumps (lipodystrophy), weight gain, dizziness, trouble breathing, muscle cramps and weakness.

Side effects typically go away as your body adjusts and do not require medical attention. If you are concerned about any side effects, then you should consult with your doctor.

If you are experiencing any symptoms of hypoglycemia such as tremors, weakness, anxiety, cool pale skin, cold sweats, you should carry sugary food such as candy or fruit juice.

If you notice any other side effects that are not listed above, contact your doctor or pharmacist.

Fiasp Flex Touch - 100u/mL

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Fiasp FlexTouch Pens 100 Units / mL
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