Patient info

Micafungin 50 mg powder for concentrate for solution for infusion – patient leaflet, side effects, dosage

Updated:
Key facts
Status:
Prescription only (POM)
Medicine strength:
50 mg
Contains active substance:
ATC code:

Patient leaflet - Micafungin 50 mg powder for concentrate for solution for infusion

1. What Micafungin is and what it is used for

Micafungin contains the active substance micafungin. Micafungin is called an antifungal medicine because it is used to treat infections caused by fungal cells. Micafungin is used to treat fungal infections caused by fungal or yeast cells called Candida. Micafungin is effective in treating systemic infections (those that have penetrated within the body). It interferes with the production of a part of the fungal cell wall. An intact cell wall is necessary for the fungus to continue living and growing. Micafungin causes defects in the fungal cell wall, making the fungus unable to live and grow.

Your doctor has prescribed Micafungin for you in the following circumstances when there are no other suitable antifungal treatments available (see section 2):

  • To treat adults, adolescents and children including neonates who have

    a serious fungal infection called invasive candidiasis (infection that has penetrated the body).

  • To treat adults and adolescents ≥ 16 years of age who have a fungal

    infection in the gullet (oesophagus) where treatment into a vein (intravenous) is appropriate.

  • To prevent infection with Candida in patients who are having a bone-

    marrow transplant or who are expected to have a neutropenia (low levels of neutrophils, a type of white blood cell) for 10 days or more.

2. What you need to know before you use Micafungin

Do not use Micafungin

  • if you are allergic to micafungin, other echinocandins (Ecalta or

    Cancidas) or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

In rats, long-term treatment with micafungin led to liver damage and subsequent liver tumours. The potential risk of developing liver tumours in humans is not known, and your doctor will assess the

and risks of Micafungin treatment before starting your medicine. Please tell your doctor if you have severe liver problems (e.g. liver failure or hepatitis) or have had abnormal liver function tests. During treatment your liver functions will be monitored more closely.

Talk to your doctor or pharmacist before using Micafungin

  • if you are allergic to any medicine
  • if you have haemolytic anaemia (anaemia due to breakdown of red

    blood cells) or haemolysis (breakdown of red blood cells).

  • if you have kidney problems (e.g. kidney failure and abnormal kidney

    function test). If this happens, your doctor may decide to monitor

    your kidney function more closely.

    Micafungin may also cause severe inflammation/eruption of the skin and mucous membranes (Stevens-Johnson syndrome, toxic epidermal necrolysis).

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    Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

    It is especially important to inform your doctor if you are using amphotericin B desoxycholate or itraconazole (antifungal antibiotics), sirolimus (an immunosuppressant) or nifedipine (calcium channel blocker used to treat high blood pressure). Your doctor may decide to adjust the dose of these medicines.

    Micafungin with food and drink

    As Micafungin is given intravenously (into a vein), no restrictions on food or drink are required.

    Pregnancy and breast-feeding

    If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

    Micafungin should not be used during pregnancy unless clearly necessary. If you use Micafungin you should not breast-feed.

    Driving and using machines

    Micafungin is unlikely to have an effect on driving or using machines. However some people may feel dizzy when taking this medicine and if this happens to you, do not drive or use any tools or machines. Please inform your doctor if you experience any effects that may cause you to have problems with driving or using other machinery.

    Micafungin contains sodium

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3. How to use Micafungin

Micafungin must be prepared and given to you by a doctor or another healthcare professional.

Micafungin should be administered once daily by slow intravenous (into a vein) infusion. Your doctor will determine how much Micafungin you will receive each day.

Use in adults, adolescents ≥ 16 years of age and elderly

  • The usual dose to treat an invasive Candida infection is 100 mg per day for patients weighing more than 40 kg and 2 mg/kg per day for patients weighing 40 kg or less.
  • The dose to treat a Candida infection of the oesophagus is 150 mg for patients weighing more than 40 kg and 3 mg/kg per day for patients weighing 40 kg or less.
  • The usual dose to prevent invasive Candida infections is 50 mg per day for patients weighing more than 40 kg and 1 mg/kg per day for patients weighing 40 kg or less.

Use in children ≥ 4 months of age and adolescents < 16 years of age

  • The usual dose to treat an invasive Candida infection is 100 mg per day for patients weighing more than 40 kg and 2 mg/kg per day for patients weighing 40 kg or less.
  • The usual dose to prevent invasive Candida infections is 50 mg per day for patients weighing more than 40 kg and 1 mg/kg per day for patients weighing 40 kg or less.

Package leaflet: Information

for the healthcare professionals

Package leaflet: Information for the patient

The following information is intended for healthcare professionals only:

Micafungin must not be mixed or co-infused with other medicinal products except those mentioned below. Using aseptic techniques at room temperature, Micafungin is reconstituted and diluted as follows:

  1. 1.

    The plastic cap must be removed from the vial and the stopper

    disinfected with alcohol.

  2. 2.

    Five milliliters of sodium chloride 9 mg/mL (0.9%) solution for

    infusion or glucose 50 mg/mL (5%) solution for infusion (taken from a 100 mL bottle/bag) should be aseptically and slowly injected into each vial along the side of the inner wall. Although the concentrate

    will foam, every effort should be made to minimise the amount of foam generated. A sufficient number of vials of Micafungin must be reconstituted to obtain the required dose in mg (see table below).

    1. 3. The vial should be rotated gently. DO NOT SHAKE. The powder will dissolve completely. The concentrate should be used immediately. The vial is for single use only. Therefore, unused reconstituted concentrate must be discarded immediately.
    2. 4. All of the reconstituted concentrate should be withdrawn from each vial and returned into the infusion bottle/bag from which it was originally taken. The diluted infusion solution should be used immediately. Chemical and physical in-use stability have been PL-57592-0037 Micafungin AFT (UK)

pack-insert 1.3.2 Pg. 1

Use in children and newborns < 4 months of age

  • The usual dose to treat an invasive Candida infection is 4-10 mg/kg per day.
  • The usual dose to prevent invasive Candida infections is 2 mg/kg per day.

If you receive more Micafungin than you should

Your doctor monitors your response and condition to determine what dose of Micafungin is needed. However, if you are concerned that you may have been given too much Micafungin, speak to your doctor or another healthcare professional immediately.

If you miss a dose of Micafungin

Your doctor monitors your response and condition to determine what Micafungin treatment is needed. However, if you are concerned that you may have missed a dose, speak to your doctor or another healthcare professional immediately. If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

If you experience an allergic attack, or a severe skin reaction (e.g. blistering and peeling of the skin), you must inform your doctor or nurse immediately.

Micafungin may cause the following other side effects:

Common (may affect up to 1 in 10 people)

  • abnormal blood tests (decreased white blood cells [leucopenia; neutropenia]); decreased red

    blood cells (anaemia)

  • decreased potassium in the blood (hypokalaemia); decreased magnesium in the blood

    (hypomagnesaemia); decreased calcium in the blood (hypocalcaemia)

  • headache
  • inflammation of the vein wall (at injection-site)
  • nausea (feeling sick); vomiting (being sick); diarrhoea; abdominal pain
  • abnormal liver function tests (increased alkaline phosphatase; increased aspartate aminotransferase,

    increased alanine aminotransferase)

  • increased bile pigment in the blood (hyperbilirubinaemia)
  • rash
  • fever
  • rigors (shivering)

Uncommon (may affect up to 1 in 100 people)

  • abnormal blood tests (decreased blood cells [pancytopenia]); decreased blood platelets

    (thrombocytopenia); increases in a certain type of white blood cells called eosinophils; decreased albumin in the blood (hypoalbuminaemia)

  • hypersensitivity
  • increased sweating
  • decreased sodium in the blood (hyponatraemia); increased potassium in the blood (hyperkalaemia);

    decreased phosphates in the blood (hypophosphataemia); anorexia (eating disorder)

  • insomnia (difficulty in sleeping); anxiety; confusion
  • feeling lethargic (somnolence); trembling; dizziness; disturbed taste
  • increased heart rate; stronger heartbeat; irregular heartbeat
  • high or low blood pressure; skin flushing
  • shortness of breath
  • indigestion; constipation
  • liver failure; increased liver enzymes (gamma-glutamyltransferase); jaundice (yellowing of the

    skin or whites of the eyes caused by liver or blood problems); reduced bile reaching the intestine (cholestasis); enlarged liver; liver inflammation

  • itchy rash (urticaria); itching; skin flushing (erythema)
  • abnormal kidney function tests (increased blood creatinine; increased urea in the blood);

    aggravated kidney failure

  • increase in an enzyme called lactate dehydrogenase
  • clotting in vein at injection-site; inflammation at injection-site; pain at injection-site; collection of

    fluid in your body

Rare (may affect up to 1 in 1,000 people)

  • anaemia due to breakdown of red blood cells (haemolytic anaemia), breakdown of red blood cells

    (haemolysis)

Not known (frequency cannot be estimated from the available data)

  • disorder of blood clotting system
  • (allergic) shock
  • damage to liver cells including death

    • kidney problems; acute kidney failure

Additional side effects in children and adolescents

The following reactions have been reported more often in paediatric patients than in adult patients:

Common (may affect up to 1 in 10 people)

  • decreased blood platelets (thrombocytopenia)
  • increased heart rate (tachycardia)
  • high or low blood pressure
  • increased bile pigment in the blood (hyperbilirubinaemia); enlarged liver
  • acute kidney failure; increased urea in the blood

Reporting of side effects

If you get any side effects, talk to your doctor, nurse or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme, website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects, you can help provide more information on the safety of this medicine.

5. How to store Micafungin

Keep this medicine out of the sight and reach of children.

Do not use Micafungin after the expiry date which is stated on the vial and on the carton. The expiry

date refers to the last day of that month.

The unopened vial does not require any special storage conditions.

The reconstituted concentrate and the diluted infusion solution should be used immediately, because it does not contain any preservatives to prevent bacterial contamination. Only a trained healthcare professional who has read the complete directions properly can prepare this medicine for use.

Do not use the diluted infusion solution if it is cloudy or precipitated.

In order to protect the infusion bottle / bag containing the diluted infusion solution from light it should be inserted into a closable opaque bag.

The vial is for single use only. Therefore, please discard unused reconstituted concentrate immediately.

6. Contents of the pack and other information

What Micafungin contains

  • The active substance is micafungin (as sodium).
  • 1 vial contains 50 mg or 100 mg micafungin (as sodium).
  • The other ingredients are lactose monohydrate, citric acid anhydrous and sodium hydroxide.

What Micafungin looks like and contents of the pack

Micafungin 50 mg or 100 mg powder for concentrate for solution for infusion is a white lyophilized powder.

Micafungin is supplied in a box containing 1 vial or 10 vials.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

Manufacturer

Elara Pharmaservices

5 Garden Court, Lockington Hall,

Main Street, Lockington,

Derby, De74 2rh,

United Kingdom

)7300/29575 LP( noisufni rof noitulos rof etartnecnoc rof redwop gm 05 nignufaciM

Micafungin 100 mg powder for concentrate for solution for infusion (PL 57592/0038)

This leaflet was revised on 23 January 2026

demonstrated for 24 hours at 2 °C to 8 °C when protected from light and diluted as described above.

  1. 5.

    The infusion bottle/bag should be gently inverted to disperse the diluted solution but NOT agitated

    in order to avoid foaming. The solution must not be used if it is cloudy or has precipitated.

  2. 6.

    The infusion bottle/bag containing the diluted infusion solution should be inserted into a closable

    opaque bag for protection from light.

Dose

Vials of Micafungin

to be used

Volume of sodium chloride 0.9% or glucose 5% to be added

per vial

Volume

(concentration) of reconstituted powder

Final concentration of standard infusion (made up to 100 mL)
50 mg1 × 50 mg5 mL

Approximately 5 mL

(10 mg/mL)

0.5 mg/mL
100 mg1 × 100 mg5 mL

Approximately 5 mL

(20mg/mL)

1.0 mg/mL
150 mg

1 × 50 mg + 1 × 100

mg

5 mLApproximately 10 mL1.5 mg/mL
200 mg2 ×100 mg5 mLApproximately 10 mL2.0 mg/mL

Preparation of the Micafungin solution for infusion AFT Pharma UK Limited

Olympia House

Unit 13, 2nd Floor, Armitage Road

London, NW11 8RQ

England

PL-57592-0037 Micafungin AFT (UK)

pack-insert 1.3.2 Pg. 2

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 57592/0037

Last revision stated in the text: 23 January 2026 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Micafungin 50 mg powder for concentrate for solution for infusion

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Micafungin
Strength 50 mg
Pharmaceutical form Powder for solution for infusion
A white colour lyophilized powder or cake
How is it taken Intravenous
Excipients Lactose Monohydrate, Citric Acid Anhydrous (to adjust the pH), Sodium Hydroxide (to adjust the pH)
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life Unopened vial: 3 years.
Reconstituted concentrate in vial
Chemical and physical in-use stability has been demonstrated for up to 48 hours at 25°C when reconstituted with sodium chloride 9 mg/ml (0.9%) solution for infusion or glucose 50 mg/ml (5%) solution for infusion.
Diluted infusion solution
Chemical and physical in-use stability has been demonstrated for 96 hours at 25°C when protected from light when diluted with sodium chloride 9 mg/ml (0.9%) solution for infusion or glucose 50 mg/ml (5%) solution for infusion. Micafungin contains no preservatives. From a microbiological point of view, the reconstituted and diluted solutions should be used immediately. If not used immediately, in-use storage times and conditions prior to use are the responsibility of the user and would normally not be longer than 24 hours at 2 to 8°C, unless the reconstitution and dilution have taken place in controlled and validated aseptic conditions.
Storage Unopened vials
Store below 25°C.
For storage conditions after reconstitution and dilution of the medicinal product, see section 6.3.
Drug group (ATC) Antimycotics for systemic use, other antimycotics for systemic use
  1. J Antiinfectives for systemic use
    1. J02 Antimycotics for systemic use
      1. J02A Antimycotics for systemic use
        1. J02AX Other antimycotics for systemic use
          1. J02AX05 micafungin
Marketing authorisation PL 57592/0037, PL 58839/0072 (first authorised 21 January 2026)
Marketing authorisation holder Zydus Pharmaceuticals UK Ltd
Codes BNF 05020400

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.