How fast does this insulin start working?

It is a rapid-acting mealtime insulin. Onset is quick, so it is taken at the start of a meal or within a short window after eating begins, as directed on the official label. Exact timing depends on the dose, injection site, and individual factors. Monitor readings closely when starting or adjusting therapy, and discuss timing with your healthcare professional to align with your meal plan.

Can I use this pen with other diabetes medicines?

Many people use a rapid-acting insulin with a background insulin or other glucose-lowering treatments. Your prescriber will decide how therapies fit together based on your needs. Some combinations can raise hypoglycemia risk, so monitor glucose and keep fast carbohydrates available. Never change doses or start new medicines without guidance from a clinician familiar with your history.

Where should I inject doses?

Use approved subcutaneous areas such as the abdomen, thigh, or upper arm. Rotate within the chosen region to reduce skin changes. Keep the pen steady during injection and hold it in place for the directed seconds. Avoid areas that are bruised, scarred, or hardened. Your care team can demonstrate technique and site rotation to support consistent absorption.

How long can an opened pen be used?

Follow the in-use time printed on the label and patient leaflet. In general, in-use pens can be kept at room temperature for the labeled period and protected from heat and light. Discard a pen once it reaches its in-use time or if the solution looks cloudy or has particles. Do not use pens that have been frozen or exposed to extreme temperatures.

Do I need special needles for this device?

Use compatible pen needles of the correct length and gauge as recommended by your prescriber or pharmacist. Always attach a new sterile needle before each dose and remove it right after injection. Do not reuse or share needles. Dispose of used needles in a puncture-resistant sharps container according to local rules or pharmacy guidance.

What if my blood sugar goes low after a dose?

Treat suspected hypoglycemia promptly with fast carbohydrates per your care plan. Recheck your level and follow your clinician’s instructions. Keep glucose tablets or gel available, especially during exercise or travel. If lows are frequent, discuss your meal timing, carbohydrate counts, and dose settings with your healthcare professional. Seek urgent help for severe symptoms such as confusion, fainting, or seizures.

Can I take this insulin while sick or traveling?

Illness can change insulin needs. Monitor more often during sick days and follow your clinician’s plan for hydration, ketone checks, and dose adjustments if instructed. For travel, carry pens and supplies in hand luggage with a copy of your prescription. Protect from temperature extremes and never store a pen with a needle attached. Keep snacks and a glucose plan accessible.

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Fiasp Flextouch

Fiasp® FlexTouch Pens for Diabetes

Type 1 Diabetes, Type 2 Diabetes

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Fiasp® is a rapid-acting insulin used at mealtimes to manage blood sugar in diabetes. It comes in a slim, prefilled pen for unit-by-unit dosing. This page helps you understand how the treatment works, who it fits, and how to use it safely.

We offer US shipping from Canada with clear options for those paying without insurance.

What Fiasp Is and How It Works

YouDrugstore is a licensed Canadian pharmacy in Manitoba. Pharmacists review prescriptions before dispensing.

This medicine contains insulin aspart, a rapid-acting insulin for post-meal control. After injection under the skin, it starts working quickly to lower glucose by enabling cells to take up sugar and by reducing liver output of glucose. It is typically used with a longer-acting insulin or other diabetes therapies to cover both meals and background needs. Insulin aspart FlexTouch pens offer convenient, adjustable dosing for everyday use.

Who It’s For

This therapy is indicated to improve glycemic control in adults and children with type 1 diabetes and in adults with type 2 diabetes. People with a history of severe hypoglycemia, allergies to insulin aspart or any component, or those experiencing diabetic ketoacidosis should not use the pen for emergency management. The treatment may be combined with basal insulin or other glucose-lowering medicines when prescribed by your clinician. Review your medical history, including kidney or liver issues, with a healthcare professional.

For condition background and education, see our pages on Type 1 Diabetes and Type 2 Diabetes.

Dosage and Usage

Dosing is individualized. Follow your prescriber’s instructions and the official label. Use the pen at the start of a meal or within a short window after starting to eat, as directed on the label. Your total daily insulin is typically split between meals and background insulin. Rotate injection sites within the same region to reduce skin changes.

Administration basics:

Check the label and expiry before each use
Attach a new sterile needle before every injection
Prime per label instructions until a drop appears
Dial the prescribed units and inject into recommended areas
Hold the needle in the skin for the directed number of seconds
Remove the needle after dosing and do not reuse it

Discuss carbohydrate counting, correction factors, and sick-day plans with your clinician. If you use devices like continuous glucose monitors, align timing with your care plan. For additional supplies, browse Insulin and Diabetes Care.

Strengths and Forms

The pen is a prefilled presentation of insulin aspart for subcutaneous use. Common pack options include multiple disposable pens sized for routine refills. The most commonly listed concentration is 100 units/mL in 3 mL pens. Availability can vary by region and pack size.

Some shoppers compare branded devices with generics or biosimilars where applicable; selection depends on your prescription and local approvals. If your prescriber recommends a class substitute, they will specify an appropriate product and strength.

For terminology clarity, many people look up Generic insulin aspart FlexTouch when discussing alternatives with their prescriber.

Missed Dose and Timing

If you miss a mealtime dose, check your glucose and follow the official label or your clinician’s advice. You may be directed to take it at the next meal, but avoid extra doses to make up for one missed dose. If you notice high readings after a missed dose, follow your care plan for corrections. Keep fast-acting carbohydrates on hand in case of hypoglycemia.

Storage and Travel Basics

Unopened pens should be kept refrigerated and protected from freezing. Do not use if frozen. In-use pens can be kept at room temperature for the labeled in-use period; keep away from heat and direct light. Do not store a pen with a needle attached. Keep out of reach of children.

For travel, carry pens and needles in your hand luggage, along with your prescription and a letter if needed. Use an insulated pouch to avoid temperature extremes. Pack a backup pen and meter supplies. Dispose of used needles safely while traveling and store new needles in their sterile packaging until use.

Pen Handling and Sharps Disposal

Before each injection, examine the solution; it should be clear and colorless. Attach a new needle, prime as directed, dial the dose, and inject at the recommended angle into approved sites. Rotate sites within the abdomen, thigh, or upper arm. Do not share pens or needles.

Place used needles in a puncture-resistant sharps container. Follow your local rules for disposal. Many community pharmacies can direct you to safe drop-off points. For compatible needles, consider Nano Pro Pen Needles.

Benefits

This mealtime insulin works quickly, helping cover carbohydrates at the start of eating. The prefilled device simplifies daily routine by allowing unit-by-unit adjustments. The treatment can be used alongside background insulin for full-day coverage when prescribed. Many people find the pen format easier to carry, read, and dial, with consistent dose delivery and no need for vials or syringes.

Side Effects and Safety

Low blood sugar (shakiness, sweating, confusion)
Injection site redness, itching, or mild swelling
Weight gain or fluid retention
Skin changes at injection sites
Nausea or headache

Serious effects can include severe hypoglycemia, allergic reactions, and low potassium. Seek urgent care for severe symptoms like fainting, seizures, trouble breathing, or widespread rash. The risk of hypoglycemia increases if you take other glucose-lowering drugs or skip meals. If you suspect an allergy to any component, stop using the pen and contact a healthcare professional.

Drug Interactions and Cautions

Tell your prescriber about all medicines and supplements. Agents that may raise glucose (like some steroids) or lower it (such as some ACE inhibitors) can change your insulin needs. Thiazolidinediones may increase fluid retention when combined with insulin. Beta-blockers may mask the warning signs of low blood sugar. Alcohol can raise or lower glucose and increase hypoglycemia risk. Do not change your dose without medical guidance.

What to Expect Over Time

With correct use and monitoring, you may notice steadier post-meal readings. Many people need periodic dose adjustments, especially with changes in meals, activity, or illness. Keep a log of readings, meals, and doses to discuss with your clinician. Build a routine: prepare supplies before eating, rotate sites, and set reminders for dose timing. For preventive lifestyle tips, see Reverse Prediabetes Naturally.

Compare With Alternatives

Your prescriber may consider other insulin options based on your needs. For background insulin, see Tresiba Flextouch Pens. If discussing other rapid-acting aspart presentations, review Novorapid Cartridge. Your choice depends on device preference, dosing flexibility, and your care plan.

Pricing and Access

Review current Fiasp FlexTouch price and compare formats to see which pack fits your prescription. Many patients also look for Fiasp FlexTouch Canadian pricing when reviewing options. You can view availability, add to cart, and upload your prescription for pharmacist review.

We provide US delivery from Canada with transparent checkout. If you are looking for extra savings, see our Promotions. Prescription required and verified.

Availability and Substitutions

Product supply can vary by strength and pack size. If an item is unavailable, your prescriber may recommend a similar insulin or a different device. If you are comparing choices for convenience, many people search Order insulin aspart from Canada to discuss options with their clinician. We cannot confirm restock dates; your care team can advise on suitable alternatives.

Patient Suitability and Cost-Saving Tips

This pen may suit adults and many children who need rapid mealtime coverage. It should not be used for diabetic ketoacidosis treatment or by anyone with a known hypersensitivity to its ingredients. Keep glucose tablets available for lows, and carry ID that lists your condition.

To save on costs, consider multi-month fills when your prescriber allows. Set refill reminders so you have pens, needles, and test strips on hand. Align refills with routine visits to avoid gaps. Compare device pack sizes, and review category pages like Diabetes Care for needed supplies.

Questions to Ask Your Clinician

Meal timing: When exactly should I inject relative to meals?
Dose plan: How should I adjust for larger or smaller meals?
Corrections: What is my correction factor and target?
Low prevention: How do I reduce hypoglycemia risk during exercise?
Site rotation: Which areas should I use and how often should I rotate?
Travel: How should I store pens on trips and handle time zones?
Combining therapies: How does this fit with my basal insulin or other medicines?

Authoritative Sources

Buy Fiasp FlexTouch pens with express, cold-chain shipping. Ships from Canada to US. This information is not a substitute for professional medical advice; always follow your prescriber and the official label.

Express Shipping - from $25.00

Shipping with this method takes 3-5 days

Prices:

Dry-Packed Products $25.00
Cold-Packed Products $35.00

Shipping Countries:

United States (all contiguous states**)
Worldwide (excludes some countries***)

Standard Shipping - $15.00

Shipping with this method takes 5-10 days

Prices:

Dry-Packed Products $15.00
Not available for Cold-Packed products

Shipping Countries:

United States (all contiguous states**)
Worldwide (excludes some countries***)

View All FAQs

How fast does this insulin start working?
It is a rapid-acting mealtime insulin. Onset is quick, so it is taken at the start of a meal or within a short window after eating begins, as directed on the official label. Exact timing depends on the dose, injection site, and individual factors. Monitor readings closely when starting or adjusting therapy, and discuss timing with your healthcare professional to align with your meal plan.
Can I use this pen with other diabetes medicines?
Many people use a rapid-acting insulin with a background insulin or other glucose-lowering treatments. Your prescriber will decide how therapies fit together based on your needs. Some combinations can raise hypoglycemia risk, so monitor glucose and keep fast carbohydrates available. Never change doses or start new medicines without guidance from a clinician familiar with your history.
Where should I inject doses?
Use approved subcutaneous areas such as the abdomen, thigh, or upper arm. Rotate within the chosen region to reduce skin changes. Keep the pen steady during injection and hold it in place for the directed seconds. Avoid areas that are bruised, scarred, or hardened. Your care team can demonstrate technique and site rotation to support consistent absorption.
How long can an opened pen be used?
Follow the in-use time printed on the label and patient leaflet. In general, in-use pens can be kept at room temperature for the labeled period and protected from heat and light. Discard a pen once it reaches its in-use time or if the solution looks cloudy or has particles. Do not use pens that have been frozen or exposed to extreme temperatures.
Do I need special needles for this device?
Use compatible pen needles of the correct length and gauge as recommended by your prescriber or pharmacist. Always attach a new sterile needle before each dose and remove it right after injection. Do not reuse or share needles. Dispose of used needles in a puncture-resistant sharps container according to local rules or pharmacy guidance.
What if my blood sugar goes low after a dose?
Treat suspected hypoglycemia promptly with fast carbohydrates per your care plan. Recheck your level and follow your clinician’s instructions. Keep glucose tablets or gel available, especially during exercise or travel. If lows are frequent, discuss your meal timing, carbohydrate counts, and dose settings with your healthcare professional. Seek urgent help for severe symptoms such as confusion, fainting, or seizures.
Can I take this insulin while sick or traveling?
Illness can change insulin needs. Monitor more often during sick days and follow your clinician’s plan for hydration, ketone checks, and dose adjustments if instructed. For travel, carry pens and supplies in hand luggage with a copy of your prescription. Protect from temperature extremes and never store a pen with a needle attached. Keep snacks and a glucose plan accessible.