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Epoprostenol 1.5 mg – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Details

Medicine strength:
1.5 mg
Contains active substance:

Patient leaflet - Epoprostenol 1.5 mg powder for solution for infusion

1. What Epoprostenol is and what it is used for

Epoprostenol contains the active substance epoprostenol which belongs

to a group of medicines called prostaglandins, which stop blood from

clotting and widen the blood vessels.

Epoprostenol is used to treat a lung condition called ‘pulmonary arterial

hypertension’. This is where the pressure is high in the blood vessels in the

lungs. Epoprostenol widens the blood vessels to lower the blood pressure

in the lungs.

Epoprostenol is also used to prevent blood clotting during kidney dialysis

in emergency situations when heparin cannot be used.

2. What you need to know before you use Epoprostenol

Do NOT use Epoprostenol

  • if you are allergic to epoprostenol or any of the other ingredients of

    this medicine (listed in section 6)

  • if you have heart failure
  • if you start to develop a build-up of fluid in your lungs causing

    breathlessness after starting this treatment.

If you think any of these apply to you, don’t use Epoprostenol until you

have checked with your doctor.

Warnings and precautions

Talk to your doctor before treatment with Epoprostenol

  • if you bleed easily (for example from your nose).

    Skin damage at the injection site

    Epoprostenol is injected into a vein. It is important that the medicine does

    not leak out of the vein into the surrounding tissue. If it does, the skin

    could be damaged. The symptoms of this are:

    • tenderness
    • burning
    • stinging
    • swelling
    • redness.

This may be followed by blistering and shedding of the skin. While you are

being treated with Epoprostenol, it is important that you check the

injection area.

Contact the hospital immediately for advice if the area becomes sore,

painful or swollen or you notice any blistering or shedding of the skin.

Effect of Epoprostenol on blood pressure and heart rate

Epoprostenol can cause your heart to beat faster or slower. Also your blood

pressure can become too low. While you are being treated with

Epoprostenol your heart rate and blood pressure will be checked. The

symptoms of low blood pressure include dizziness and fainting.

Tell your doctor immediately if you get these symptoms. Your dose may

need to be reduced or your infusion stopped.

Children and adolescents

The safety and efficacy of Epoprostenol in children have not yet been

established.

Other medicines and Epoprostenol

Tell your doctor or nurse if you are using, have recently used or might use

any other medicines.

Some medicines may affect how Epoprostenol works, or make it more

likely that you’ll have side effects.

Epoprostenol can also affect how some other medicines work if taken at

the same time. These include:

  • medicines used to treat high blood pressure
  • medicines used to prevent blood clots
  • medicines used to dissolve blood clots
  • medicines to treat inflammation or pain (also called ‘NSAIDs’),

    for example ibuprofen

  • digoxin (used to treat heart disease).

Tell your doctor or nurse if you are taking any of these.

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

treatment with this medicine.

It is not known whether the ingredients of Epoprostenol can pass into

breast-milk. You should stop breastfeeding your child during

treatment with Epoprostenol.

Driving and using machines

Your treatment may have an effect on the ability to drive or use machinery.

Don’t drive or use machines if you’re feeling unwell.

Epoprostenol contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per dose, that is

to say essentially ‘sodium- free’.

The diluted solution of Epoprostenol (pH 12) must not be used with

administration materials containing polyethylene terephthalate (PET) or

polyethylene terephthalate glycol (PETG).

3. How to use Epoprostenol

Always use this medicine exactly as your doctor, nurse or pharmacist has told you. Check with your doctor or nurse if you are not sure.

Epoprostenol comes as a powder in a small glass vial. The powder needs to be dissolved before use.

Epoprostenol should not be given as a quick injection into your vein. It should always be given as an intravenous infusion (drip).

Your doctor will decide how much Epoprostenol is right for you. The amount you are given is based on your body weight, and your type of illness. Your dose may be increased or decreased depending on how well you respond to treatment.

Epoprostenol is given by slow infusion (drip) into a vein.

Pulmonary arterial hypertension

Your first treatment will be given to you in a hospital. This is because your doctor needs to monitor you and find the best dose for you.

You will start with an infusion of Epoprostenol. The dose will be increased until your symptoms are relieved and any side effects are manageable. Once the best dose has been found, a permanent tube (line) will be fitted into one of your veins. You can then be treated using an infusion pump.

Kidney dialysis

You will be given an infusion of Epoprostenol for the duration of your dialysis.

Using Epoprostenol at home (only for treatment of pulmonary arterial hypertension)

If you are treating yourself at home, your doctor or nurse will show you how to prepare and use Epoprostenol. They will also advise you how to stop treatment if necessary. Stopping Epoprostenol must be done gradually. It is very important that you follow all their instructions carefully.

Epoprostenol comes as a powder in a glass vial. Before use, the powder needs to be dissolved in a liquid. The liquid does not contain a preservative. If you have any of the liquid left over, it must be thrown away.

Looking after the injection line

If you have been fitted with a ‘line’ into a vein it is very important to keep this area clean, otherwise you could get an infection. Your doctor or nurse will show you how to clean your ‘line’ and the area around it. It is very important that you follow all of their instructions carefully. It is also very important that you carefully follow all instructions regarding the change of the pump drug delivery reservoir (cassette) and that you always use an extension set with an in-line filter, as instructed by your doctor to reduce the risk of an infection.

If you use more Epoprostenol than you should Seek urgent medical attention if you think you have used or been given too much Epoprostenol. Symptoms of overdose may include headache, nausea, vomiting, fast heart rate, warmth or tingling, or feeling like you might pass out (feeling faint/dizziness).

If you forget to use Epoprostenol

Do not use a double dose to make up for a forgotten dose.

If you stop using Epoprostenol

Stopping Epoprostenol must be done gradually. If the treatment is stopped too quickly you may get serious side effects, including dizziness, feeling weak and breathing difficulties. If you have problems with the infusion pump or an injection line that stops or prevents treatment with Epoprostenol, contact your doctor, nurse or hospital immediately.

If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.

4. Possible side effects

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

Tell your doctor or nurse immediately if you get any of the following signs of infection of the blood, low blood pressure or serious bleeding:

  • You feel that your heart is beating faster, or you have chest pain or

    shortness of breath

  • You feel dizzy or feel faint, especially on standing
  • You have fevers or chills
  • You have more frequent or longer periods of bleeding, for example

    nose bleeding

  • The injection site becomes sore, painful or swollen or you notice any

    blistering or shedding of the skin (see Section 2).

Other possible side effects

Very common (may affect more than 1 in 10 people)

  • headache
  • jaw pain
  • pain
  • being sick (vomiting)
  • feeling sick (nausea)
  • diarrhoea
  • redness of your face (flushing).

Common (may affect up to 1 in 10 people)

  • infection of the blood (septicaemia)
  • heart beating faster
  • slow heart beat
  • low blood pressure
  • bleeding at various sites and bruising more easily than normal,

    for example from the nose or gums

  • stomach discomfort or pain
  • chest pain
  • joint pain
  • feeling anxious, feeling nervous
  • rash
  • pain at the injection site
  • decrease in the number of blood platelets (cells that help the blood to

    clot). This may show up in blood tests.

Uncommon (may affect up to 1 in 100 people)

  • sweating
  • dry mouth.

Rare (may affect up to 1 in 1000 people)

  • infection at the injection site.

Very rare (may affect up to 1 in 10,000 people)

  • feeling of tightness around the chest
  • feeling tired, weak
  • feeling agitated
  • pale skin
  • redness at the injection site
  • overactive thyroid gland
  • blockage of the injection catheter.

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

  • enlarged or overactive spleen
  • build up of fluid in the lungs (pulmonary oedema) - increase in sugar (glucose) in the blood
  • swelling due to build up of fluid around the stomach - too much pumping of blood from the heart leading to shortness of

    breath, fatigue, swelling of the legs and abdomen due to fluid build-up, persistent cough.

    Reporting of side effects

    If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: 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 Epoprostenol

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

Do not use this medicine after the expiry date, which is stated on the vial label and carton after EXP. The expiry date refers to the last day of that month.

Do not freeze.

Keep the vial in the outer carton in order to protect from light.

The reconstituted solution should be further diluted to the final concentration within one hour of reconstitution (see Information intended for medical or healthcare professionals).

For storage conditions after reconstitution and dilution of the medicine see Information intended for medical or healthcare professionals.

Do not use this medicine if you notice any particles in the reconstituted solution.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What Epoprostenol contains

Epoprostenol 0.5 mg, powder for solution for infusion:

  • The active substance is epoprostenol (as epoprostenol sodium).

    Each vial contains 0.531 mg epoprostenol sodium equivalent to 0.5 mg epoprostenol.

    One ml of reconstituted solution contains 0.1 mg epoprostenol (as epoprostenol sodium).

Epoprostenol 1.5 mg, powder for solution for infusion:

  • The active substance is epoprostenol (as epoprostenol sodium).

    Each vial contains 1.593 mg epoprostenol sodium equivalent to 1.5 mg epoprostenol.

    One ml of reconstituted solution contains 0.3 mg epoprostenol (as epoprostenol sodium).

The other ingredients are glycine, sucrose and sodium hydroxide (for pH adjustment).

What Epoprostenol looks like and contents of the pack

White to off-white powder in a clear glass vial with a rubber stopper and an aluminium flip-off cap.

Each pack contains one vial holding 0.5 mg powder.

Each pack contains one vial holding 1.5 mg powder.

Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Sun Pharmaceutical Industries Europe B.V.

Polarisavenue 87

2132 JH Hoofddorp

The Netherlands

This medicine is authorised in the Member States of the European Economic Area and in the United Kingdom (Northern Ireland) under the following names:

Italy Epoprostenolo SUN Netherlands Epoprostenol SUN Spain Epoprostenol SUN United Kingdom (Northern Ireland) Epoprostenol

This leaflet was last revised in December 2021

PL-000096

Rev. 1.0

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 31750/0138

Last revision stated in the text: December 2021 · 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 Epoprostenol 1.5 mg powder for solution for infusion

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Epoprostenol
Strength 1.5 mg
Pharmaceutical form Powder and solvent for solution for infusion
White to off-white powder
For the pH of the diluted solution see section 4.4. The osmolality of the diluted solution is between 150 and 350 mOsm/kg.
How is it taken Intravenous
Excipients Glycine, Sucrose, Sodium hydroxide (for pH adjustment)
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 2 years
In use shelf life reconstituted/diluted solution for infusion The reconstituted solution should be further diluted to the final concentration within one hour of reconstitution.
The diluted solution should be stored in the drug delivery reservoir in order to protect from light and can be stored for up to 8 days at 2 to 8°C.
Stability during administration:
For Solutions ≥ 3000 ng/ml and < 15,000 ng/ml:
Freshly prepared solution for infusion can be administered immediately or stored in the reservoir of ambulatory pump up to 8 days at 2°C to 8°C prior to administration.
Freshly prepared solution can be administered for up to 48 hours at room temperature (25°C)
Solution that has been stored in the reservoir of ambulatory pump at 2°C to 8°C for up to 8 days can be administered for up to 24 hours at room temperature (25°C).
Discard any unused solution after this time.
For Solutions ≥ 15,000 ng/ml
Freshly prepared solution for infusion can be administered immediately or stored in the reservoir of ambulatory pump up to 8 days at 2°C to 8°C prior to administration.
Freshly prepared solution can be administered for up to 48 hours at room temperature (25°C)
Solution that has been stored in the reservoir of ambulatory pump at 2°C to 8°C for up to 8 days can be administered for up to 48 hours at room temperature (25°C).
Discard any unused solution after this time.
Storage Do not freeze.
Keep the vial in the outer carton in order to protect from light.
The reconstituted solution should be further diluted to the final concentration within one hour of reconstitution (see sections 6.3 and 6.6).
Epoprostenol diluted to the final concentration in the drug delivery reservoir as directed can be administered at room temperature (25°C) immediately after dilution or after storage for up to 8 days at 2 to 8°C as per the conditions of use outlined in Table 2 section 6.6. Do not expose the fully diluted solution to direct sunlight.
Drug group (ATC) Antithrombotic Agents; Platelet aggregation inhibitors excl. heparin
  1. B Blood and blood forming organ drugs
    1. B01 Antithrombotic agents
      1. B01A Antithrombotic agents
        1. B01AC Platelet aggregation inhibitors excl. heparin
          1. B01AC09 epoprostenol
Marketing authorisation PL 31750/0138 (first authorised 6 December 2023)
Marketing authorisation holder Sun Pharmaceutical Industries Europe B.V.
Codes BNF 02080100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.1.0 of 12 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.