Package Leaflet: Information for the Patient
Fiasp 100 units/ml solution for injection in vial
insulin aspart
Read all of this leaflet carefully before you start using this medicine because it contains important information for you.
Contents of the pack
Fiasp is an insulin that is administered at mealtimes with a rapid effect of lowering blood sugar. Fiasp is a solution for injection of insulin aspart and is used to treat diabetes mellitus in adults, adolescents, and children from 1 year of age. Diabetes is a disease in which the body does not produce enough insulin to control blood sugar levels. Treatment with Fiasp helps prevent complications of diabetes.
Fiasp should be injected from 2 minutes before starting to eat, with the possibility of administration up to 20 minutes after the start of the meal.
This medicine reaches its maximum effect between 1 and 3 hours after injection and the effect lasts between 3 and 5 hours.
This medicine should normally be used in combination with intermediate or long-acting insulins.
In addition, it can be used for continuous infusion in a pump.
Do not use Fiasp
Warnings and precautions
Talk to your doctor, pharmacist, or nurse before starting to use Fiasp. It is important that you know the following:
Some conditions and activities can affect your insulin requirements. Talk to your doctor:
When using Fiasp, it is strongly recommended that you record the name and batch number of each pack to keep a record of the batches used.
Skin changes at the injection site
The injection site should be rotated to help avoid changes in the fatty tissue, such as thickening of the skin, shrinking of the skin, or lumps under the skin. Insulin may not work well if injected into a swollen, shrunk, or thickened area (see section 3 "How to use Fiasp"). Tell your doctor if you notice any changes in the injection site. Tell your doctor if you are currently injecting into these affected areas, before starting to inject into a different area. Your doctor may indicate that you should check your blood sugar levels more closely and adjust the insulin or the dose of your other antidiabetic medications.
Children and adolescents
It is not recommended to use this medicine in children under 1 year of age.
Other medicines and Fiasp
Tell your doctor or pharmacist if you are using, have recently used, or might use any other medicines. Some medicines affect your blood sugar level and this may mean that you need to change your insulin dose.
The following are the main medicines that can affect your treatment with insulin.
Your blood sugar level may decrease (hypoglycemia) if you take:
Your blood sugar level may increase (hyperglycemia) if you take:
Octreotide and lanreotide, used to treat acromegaly, a rare disorder characterized by excessive production of growth hormone. These medicines can increase or decrease your blood sugar level.
If you are in any of the above situations (or are unsure), talk to your doctor or pharmacist.
Using Fiasp with alcohol
If you drink alcohol, it may change your need for insulin, as your blood sugar level may be increased or decreased. Therefore, you should check your blood sugar level more frequently than usual.
Pregnancy and breastfeeding
If you are pregnant, think you may be pregnant, or plan to become pregnant, talk to your doctor before using this medicine. This medicine can be used during pregnancy, however, it may be necessary to change the insulin dose while you are pregnant and after giving birth. The amount of insulin you need usually decreases during the first 3 months of pregnancy and increases during the remaining 6 months. During pregnancy, it is necessary to carefully control your diabetes. Avoiding a low blood sugar level (hypoglycemia) is especially important for the health of your baby. After having your baby, your insulin requirements will probably return to what they were before pregnancy.
There are no restrictions on treatment with Fiasp during the breastfeeding period.
Driving and using machines
A low blood sugar level can affect your ability to drive or use tools or machines. If you have a low blood sugar level, your ability to concentrate and react may be affected. This could put your life or the lives of others at risk. Ask your doctor if you can drive if:
Important information about some of the ingredients of Fiasp
This medicine contains less than 1 mmol of sodium (23 mg) per dose; i.e., it is essentially "sodium-free".
Follow the instructions for administration of this medicine exactly as indicated by your doctor.
In case of doubt, consult your doctor or pharmacist again.
When to use Fiasp
Fiasp is an insulin that is administered at mealtimes.
Adults: Fiasp should be injected just before (0 to 2 minutes) starting to eat, with the possibility of administration up to 20 minutes after the start of the meal.
Children: Fiasp should be injected just before (0 to 2 minutes) starting to eat, with the possibility of administration up to 20 minutes after the start of the meal in situations where it is uncertain when the child will eat. Talk to your doctor about these situations.
This medicine reaches its maximum effect between 1 and 3 hours after injection and the effect lasts between 3 and 5 hours.
Fiasp dose
Dose for type 1 and type 2 diabetes
Your doctor will decide together with you:
If you want to change your usual diet, talk to your doctor, pharmacist, or nurse before, as a change in diet can alter your need for insulin.
When using other medicines, ask your doctor if it is necessary to adjust your treatment.
Dose adjustment for type 2 diabetes
The daily dose depends on your blood sugar level at mealtimes the previous day and the previous night.
Table 1 Dose adjustment | ||
Blood sugar level at mealtimes or at night | Dose adjustment | |
mmol/l | mg/dl | |
less than 4 | less than 71 | Reduce the dose by 1 unit |
4-6 | 71-108 | No dose adjustment is needed |
more than 6 | more than 108 | Increase the dose by 1 unit |
Use in elderly patients (65 years or older)
This medicine can be used in elderly patients. Talk to your doctor about possible changes in your dose.
If you have kidney or liver problems
If you have kidney or liver problems, you may need to check your blood sugar level more frequently. Talk to your doctor about possible changes in your dose.
Injecting Fiasp
This medicine is injected under the skin (subcutaneous injection) or through continuous infusion pumps. It is necessary that a healthcare professional explains everything related to administration through a pump.
Where to inject
Do not use Fiasp
How to inject Fiasp
Before using Fiasp for the first time, your doctor or nurse will show you how to do it.
Using Fiasp in an infusion pump
If you want to use Fiasp through an infusion pump, follow the instructions and recommendations of your doctor. Before using Fiasp in the pump, you must receive detailed instructions and information on what to do in case of illness, high or low blood sugar level, or pump system failure. You can use Fiasp from a vial in an infusion pump system for a maximum of 6 days.
Filling the pump
To get the most out of insulin infusion and detect possible pump failure, it is recommended to regularly measure your blood sugar level.
What to do in case of pump failure
You should always have an alternative insulin administration system on hand (for example, an injection pen or syringes) in case the pump fails.
If you use more Fiasp than you should
If you use too much insulin, your blood sugar level may become very low (hypoglycemia), see section 4 "Low blood sugar level".
If you forget to use Fiasp
If you forget to inject the insulin, your blood sugar level may become very high (hyperglycemia). See section 4 "High blood sugar level".
Three simple stepsthat can help youavoid low or high blood sugar levels:
If you stop using Fiasp
Do not stop your insulin treatment without consulting your doctor. Stopping insulin administration could cause a very high blood sugar level (severe hyperglycemia) and ketoacidosis (a problem that consists of an excessive amount of acid in the blood that is potentially fatal). See symptoms and recommendations in section 4 "High blood sugar level".
Like all medicines, this medicine can cause adverse effects, although not all people suffer from them.
Low blood sugar level (hypoglycemia)is a very frequent adverse effect of insulin treatment (it can affect more than 1 in 10 people). It can be very serious. A severe drop in blood sugar can lead to loss of consciousness. Severe hypoglycemia can cause brain damage and put your life at risk. If you have symptoms of low blood sugar, take measures to increase your blood sugar level immediately. See the recommendations "Low blood sugar level" below.
If you suffer a severe allergic reaction(including anaphylactic shock) to insulin or any of the components of Fiasp (the frequency at which this occurs is unknown), discontinue treatment with this medicine and contact the emergency medical service immediately.
The symptoms of a severe allergic reaction may include:
Allergic reactionssuch as widespread skin rash and facial swelling may occur. These are uncommon and may affect up to 1 in 100 people. Consult a doctor if the symptoms worsen or if you see no improvement within a few weeks.
Changes in the skin at the injection site:If insulin is injected in the same place, the fatty tissue can shrink (lipoatrophy) or become thicker (lipohypertrophy) (these are uncommon and may affect up to 1 in 100 people). Lumps under the skin can also occur due to the accumulation of a protein called amyloid (cutaneous amyloidosis; the frequency at which this occurs is unknown). Insulin may not work very well if injected into a lumpy, shrunken, or thickened area. Change the injection site to help avoid these skin changes.
Other adverse effects include:
Frequent(may affect up to 1 in 10 people)
Reaction at the administration site: Localized reactions may appear at the injection site. Symptoms can include: rash, redness, inflammation, bruising, irritation, pain, and itching. These reactions usually disappear after a few days.
Skin reactions: Signs of skin allergy such as eczema, rash, itching, hives, and dermatitis may appear.
General effects of insulin treatment, including Fiasp
Low blood sugar levels may occur if:
You drink alcohol, inject too much insulin, exercise more than usual, eat very little, or skip a meal.
Warning symptoms of low blood sugar, which can appear suddenly:Headache, difficulty speaking, palpitations, cold sweat, cold and pale skin, nausea, excessive hunger, tremor, nervousness or anxiety, unusual fatigue, weakness, and somnolence, confusion, difficulty concentrating, temporary changes in vision.
What to do if your blood sugar level is low
What people close to you should do if you lose consciousness
Inform the people you spend time with that you have diabetes. Tell them what the consequences of low blood sugar may be, including the risk of losing consciousness.
Tell them that if you become unconscious, they should do the following:
You may regain consciousness more quickly if someone who knows how to do so administers a glucagon injection to you.
If severe hypoglycemia is not treated, it can cause brain damage over time, which can be temporary or permanent. It can even lead to death.
Talk to your doctor if:
You may need to adjust the dose or frequency of your insulin injections, diet, or exercise.
High blood sugar levels may occur if:
You eat more or exercise less than usual, drink alcohol, have an infection or fever, do not inject enough insulin, repeatedly inject less insulin than you need, forget to inject insulin, or interrupt insulin treatment.
Warning symptoms of high blood sugar, which usually appear gradually:
Redness of the skin,
dry skin,
feeling of drowsiness or fatigue,
dry mouth,
fruity breath odor (acetone),
increased need to urinate,
thirst,
loss of appetite,
nausea or vomiting.
These can be symptoms of a very serious condition called ketoacidosis. It is an accumulation of acid in the blood because the body is metabolizing fat instead of sugar. If left untreated, it can lead to diabetic coma and even death.
What to do if your blood sugar level is high
Reporting adverse effects
If you experience any adverse effects, consult your doctor, pharmacist, or nurse, even if they are not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiration date stated on the label and carton after EXP. The expiration date is the last day of the month indicated.
Before first use:
Store in a refrigerator (between 2°C and 8°C). Do not freeze. Keep away from the freezer. Store the vial in the outer packaging to protect it from light.
Once opened or when carried as a spare:You can carry the vial with you and store it at room temperature (not above 30°C) or in a refrigerator (between 2°C and 8°C) for 4 weeks (including the time in the pump reservoir). Always store the vial in the outer packaging to protect it from light.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.
Composition of Fiasp
Appearance of Fiasp and package contents
Fiasp is presented as a clear, colorless, and aqueous solution for injection in a vial.
Each vial contains 10 ml of solution.
Package sizes of 1 or 5 vials or a multipack of 5 (1 x 10 ml) vials. Not all package sizes may be marketed.
Marketing authorization holder and manufacturer
Novo Nordisk A/S,
Novo Allé,
DK-2880 Bagsværd, Denmark
Date of the last revision of this leaflet:
Other sources of information
Detailed information about this medicine is available on the European Medicines Agency website: http://www.ema.europa.eu.
The average price of FIASP 100 units/mL injectable solution in vial in October, 2025 is around 28.8 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.