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Step 1
The customer selects the correct Fiasp FlexTouch Pens insulin dose and quantity and adds it to the cart.
Step 2
Patients must upload a clear photo or PDF during checkout for all prescription medications.
Step 3
A licensed pharmacist reviews the order and verifies the prescription.
Step 4
The order is packed in temperature-controlled packaging. Delivery time is 3-5 business days.
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Fiasp is a rapid-acting mealtime insulin used by people with type 1 and type 2 diabetes to help control blood sugar spikes around meals. It begins working quickly and allows for flexible dosing at the start of a meal or shortly afterward. Thousands of patients choose to purchase Fiasp from places like Insulin Outlet because prices can be up to 80% lower than typical U.S. pharmacy costs. A valid prescription is required. Insulin Outlet works exclusively with licensed Canadian pharmacies to ensure patients receive authentic and properly handled medication at a more affordable price.
| Active Ingredient | Insulin aspart |
|---|---|
| Type | Rapid-acting |
| Manufacturer | Novo Nordisk |
| Onset | About 15 minutes |
| Duration | 3-5 hours |
| Form |
|
| Origin | Denmark |
| Uses | Controls blood sugar spikes around meals |
| Administration | Subcutaneous injection |
| Dosage | Varies by patient |
| Dosage Frequency | Taken with meals |
| Storage |
|
Fiasp is an insulin that works quickly to manage blood sugar during meals. This medication is known for entering the bloodstream as quickly as within 2.5 minutes after being taken and is used for blood sugar control. Adults and children struggling with diabetes mellitus may be prescribed this medication. This injectable medication is designed to be taken as a meal is being started or up to 20 minutes after that point. This is because the medication has a roughly 15-minute onset time and peaks in about one to three hours.
Fiasp comes in U-100 formulations. It can be used in the form of 10 mL multiple-dose vials or 3 mL single-patient-use FlexTouch pens. It can also be used in the form of 3 mL single-patient-use PenFill cartridges that go into a corresponding compatible device. The number of doses that can be used from one of these devices depends on the dose prescribed to the patient. Dosing for this medication must always be individualized and prescribed by a clinician. Glucose monitoring and the patient’s carbohydrate intake should be factored into the doses decided by the doctor. Fiasp has also been studied for safe use in pediatric patients with type 1 diabetes aged anywhere from 2 years old to 17 years. Pediatric patients in this group may be prescribed this medication with extra blood glucose monitoring and possible dose adjustments.
This medication may be given to patients in the form of a pen – such as the FlexTouch pen – or a syringe that takes the medication from a vial. Patients using the pen version of the medication should:
This medication may also be available in cartridge form for use with compatible insulin delivery devices, such as the NovoPen Echo or PenFill systems. It can also be used in insulin pumps and in automated insulin delivery systems – including the iLet Bionic Pancreas – when prescribed and set up by a healthcare provider.
Important instructions for pump users:
This insulin should only be used with devices that are specifically approved for compatibility and according to manufacturer and healthcare provider instructions.
Patients using Fiasp should also make sure to:
Patients using any method of administration should also make sure not to inject their medication into areas of lipohypertrophy. Injection sites should be routinely rotated with each use of the medication.
This medication is not suitable for patients who have blood sugar levels that are too low or have an allergy to the medication or any of its ingredients. Patients should also let their doctor know if they have a personal or family history of some specific issues before starting the medication (as it may impact the suitability and safety of the medication for them). This includes if they have a history of any liver or kidney problems. It also includes whether they are pregnant or breastfeeding. Patients should also let their doctor know of any new prescription or OTC medications that they are taking – including any supplements.
An eye should also be kept out for issues that could develop such as hypoglycemia or hyperglycemia. They should also look out for signs of hypokalemia, ketoacidosis, and fluid retention or heart failure. These conditions are rare but are very serious if they do occur and patients experiencing any of these issues should seek immediate medical attention. Patients should also make sure they undergo stricter glucose monitoring if they are suffering from renal or hepatic impairment and a doctor still prescribes this medication to them.
A blood sugar level below 70 mg/dL is generally considered low and may indicate hypoglycemia. There may be some other signs that a patient has hypoglycemia like:
A patient suffering from hypoglycemia may be able to help with their issues by following the “15-15 rule.” This rule tells patients to:
Patients using this medication should avoid driving or using any heavy machinery until they know how they are affected by using the medication. They should also avoid alcohol consumption and any other medications that may contain alcohol. The use of alcohol increases the risk of hypoglycemia while using this medication.
Needles for this medication must never be shared with other patients. This medication also has contradictions with being used during hypoglycemia episodes or in patients who have a hypersensitivity to any other contents of the medication. It should also not be used by patients with recurrent hypoglycemia or unawareness.
Patients who are going through a sick day should test their blood sugar levels more frequently. This should be done about every four hours. They should otherwise take their medications as normal. It is especially important for this group of patients to also make sure they are staying hydrated. They should also make sure they are not consuming a different amount of food than usual. Sick patients should also continue checking their weight. Weight loss may be a sign of high blood sugar. Body temperature should also be frequently checked to make sure the patient does not develop a fever – an indication of a serious issue or infection.
Patients should not use Fiasp with any drugs that increase the risk of hypoglycemia or impact their blood glucose lower effects of the medication. This medication also interacts with drugs that mask signs and symptoms of hypoglycemia. This includes medications such as beta-blockers or reserpine. It also includes medications like guanethidine and clonidine. Patients combining these medications will need more frequent monitoring of their glucose levels.
The use of Fiasp can lead to patients experiencing some common side effects such as:
Some patients may also experience more serious effects. Potential serious side effects can include:
Patients should seek urgent medical care if any serious reactions occur or if common side effects do not improve or become worse.
Patients who miss a dose or accidentally give themselves too low a dose of this medication may have their blood sugar levels become too high (hyperglycemia). Blood sugar levels should be frequently monitored while using this medication and a doctor should be contacted if symptoms or blood sugar levels become concerning. Missed doses should never be made up for by taking an extra dose later on.
Room Temperature Storage (Before First Use)
After First Use
Additional Notes
| Insulin | Type | Manufacturer | Duration | Concentration | Injection Device |
|---|---|---|---|---|---|
| Fiasp | Rapid-acting | Novo Nordisk | 3-5 hours | U-100 |
|
| NovoLog | Rapid-acting | Novo Nordisk | 3-5 hours | U-100 |
|
| Humalog | Rapid-acting | Eli Lilly and Company | About 2-5 hours | U-100 or U-200 |
|
Patients buying their medication from Insulin Outlet experience:
Buy Fiasp from Canada today.
Yes. Fiasp is available only with a valid prescription from the patient’s healthcare professional. A copy of the prescription must be uploaded during checkout.
Yes. Fiasp orders can be shipped directly to U.S. addresses. Orders from Insulin Outlet are packed in temperature-controlled packaging to make sure the insulin remains safe and effective during transit. The typical delivery time is about 3-5 business days.
Both Fiasp and Novolog are rapid-acting insulins containing insulin aspart. However, Fiasp has vitamin B3 (niacinamide) added to its formulation. This helps increase the absorption speed of the medication.
Yes. Fiasp is shipped using cold-chain packaging to maintain the proper temperature and preserve the insulin’s effectiveness.
Both medications are types of insulin products of Novo Nordisk. Fiasp is a rapid-acting mealtime insulin designed to manage blood sugar spikes around meals and only lasts about three to five hours. Tresiba is a long-acting insulin used to provide steady blood sugar control over a period of about 42 hours. The two insulins serve different purposes in diabetes management.
FlexTouch pens and vials may be kept at room temperature up to 86°F or in the refrigerator and must be used within 28 days once opened. PenFill cartridges must be kept at room temperature and used within 28 days and PumpCart cartridges should be used within four days at room temperature.
Disclaimer: The information provided on this page is for educational and informational purposes only and is not intended to replace professional medical advice or treatment. Fiasp is a prescription medication that must be used exactly as directed by a licensed healthcare provider.
Fiasp® Rapid-Acting Insulin. (n.d.). Fiasp®. https://www.myfiasp.com/
FlexTouch® Pen & Dosing Options. (n.d.). Fiasp®. https://www.myfiasp.com/how-to-take-fiasp/taking-fiasp.html
HIGHLIGHTS OF PRESCRIBING INFORMATION. (2019). FDA. https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/208751s010s011lbl.pdf
Managing sick days. (2024, May 15). CDC. https://www.cdc.gov/diabetes/living-with/managing-sick-days.html
PATIENT MEDICATION INFORMATION. (September 2020). Novo Nordisk. https://www.novonordisk.ca/content/dam/nncorp/ca/en/products/fiasp-consumer-information.pdf
Signs, symptoms, and treatment for hypoglycemia (Low blood glucose). (n.d.). American Diabetes Association. https://diabetes.org/living-with-diabetes/hypoglycemia-low-blood-glucose/symptoms-treatment
Stewart, J. (2025, May 12). What is the difference between Fiasp and NovoLog? https://www.drugs.com/medical-answers/difference-between-fiasp-novolog-3342542/
Yau, M., & Sperling, M. A. (n.d.). Table 7. [Types of Insulin Preparations and Action Profiles ()]. – Endotext – NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK279087/table/mgmt-t1t2diab-child.T.types_of_insulin_p/
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×As we enter the warmer summer months, we are making minor adjustments to our shipping protocols to ensure you receive your medications in the best possible condition.
Due to higher seasonal temperatures during transit, we are implementing the following changes:
Why are we doing this?
While these medications are generally stable at room temperature for 15 to 30 days, shorter shipping cycles and increased insulation mitigate heat exposure. These proactive steps significantly reduce the need for reshipments and guarantee your medication arrives safely.