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ISOFUNDIN SOLUTION FOR INFUSION

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About the medicine

How to use ISOFUNDIN SOLUTION FOR INFUSION

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

Isofundin Solution for Infusion

Read all of this leaflet carefully before you start using this medicine because it contains important information for you.

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • If you experience any side effects, talk to your doctor or pharmacist, even if they are not listed in this leaflet. See section 4.

Contents of the Package Leaflet

  1. What is Isofundin and what is it used for
  2. What you need to know before you use Isofundin
  3. How to use Isofundin
  4. Possible side effects
  5. Storage of Isofundin
  6. Contents of the pack and other information

1. What is Isofundin and what is it used for

Isofundin is a solution for intravenous infusion.

This solution is used for the replacement of fluid losses from the circulation. It can be used in conditions where your blood may become or has become slightly acidic.

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2. What you need to know before you use Isofundin

Do not use Isofundin

If you have:

? too much fluid in the circulation,

? severe heart disease with breathing difficulties and swelling in the feet and legs,

? severe kidney disease with inability or difficulty to urinate,

? swelling of body tissues due to fluid accumulation,

? high levels of potassium or calcium in the blood,

? or if your blood is too alkaline.

Warnings and precautions

Consult your doctor or pharmacist before starting to use Isofundin.

Be particularly careful with Isofundin if you have:

? any disease that requires reduced salt intake, such as mild or moderate heart failure, tissue swelling, or fluid accumulation in the lungs,

? sarcoidosis (a chronic disorder of the immune system that affects lymph nodes and connective tissue),

? mild or moderate increase in blood pressure,

? acute dehydration, for example, after severe burns or due to adrenal gland dysfunction,

? high levels of sodium and chloride in the blood,

? eclampsia (a complication that occurs during pregnancy),

? mild or moderate kidney function impairment,

? respiratory problems,

? any disease or medication that you are taking that may reduce sodium excretion,

If any of the above warnings apply to you, your doctor will carefully decide whether the solution is suitable for you.

Your doctor will monitor your fluid and electrolyte levels while you are receiving Isofundin to ensure they are normal.

Using Isofundin with other medicines

Tell your doctor or pharmacist if you are using or have recently used or might use any other medicines.

It is particularly important that your doctor knows if you are taking, using, or receiving:

? Medicines associated with sodium and water retention, such as:

  • corticosteroids, or
  • carbenoxolone.

If these medicines are used with Isofundin, your body water and blood sodium levels may increase, causing edema and increased blood pressure.

? Medicines associated with potassium levels in the blood, such as

  • suxamethonium
  • some diuretics (pills that help eliminate water) that decrease potassium excretion, for example, amiloride, spironolactone, triamterene
  • tacrolimus, cyclosporin (medicines used, for example, to prevent organ transplant rejection).

If these medicines are used with Isofundin, your potassium level in the blood may increase, which can cause adverse effects on your heart function. This is more likely to happen if you have kidney failure.

? Digitalis glycoside preparations (e.g., digoxin), which are used to treat heart weakness.

Their effects are enhanced by an increase in calcium levels in the blood, and adverse effects such as irregular heartbeat may appear. Therefore, your doctor will need to adjust your digoxin dose.

? Vitamin D, which can cause an increase in calcium levels in the blood.

Your doctor will be aware of the adverse effects that may appear after combining Isofundin with the aforementioned medicines. In turn, they will ensure that the infusion you receive is properly dosed.

Some medicines do not mix with Isofundin. Doctors will only administer medicines with Isofundin if they are sure the mixture is safe.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medicine.

Your doctor will decide if this solution is suitable for you when you are pregnant.

This medicine will be used with caution in pregnancy toxemia, a special complication that can occur during pregnancy.

Driving and using machines

Isofundin has no influence on the ability to drive and use machines.

Isofundin contains sodium

If you are on a low-sodium diet, note that this medicine contains 145 mmol of sodium per 1000 ml.

3. How to use Isofundin

Method of administration

This medicine will be administered into a vein by drip.

Dose

Your doctor will determine the amount of solution you need.

In adults, elderly patients, and adolescents, this can be 500 milliliters to 3 liters per day. The daily dose in infants and children may range from 20 to 100 milliliters per kilogram of body weight per day.

Rate of administration

Your doctor will determine the infusion rate of the solution, depending on your body weight and condition.

Duration of treatment

Your doctor will determine how long you should receive this solution.

While you are receiving the infusion, your fluid and electrolyte levels and acid-base balance should be monitored.

If you receive more Isofundin than you should

Since the dose administered to you will be controlled by your doctor or nurse, it is unlikely that you will receive an excess of this solution.

However, if you accidentally receive more solution than you should or the solution flows too quickly, you may experience symptoms such as:

  • increased skin tension,
  • congestion in the veins or swelling,
  • fluid accumulation in the lungs,
  • shortness of breath,
  • abnormalities in the composition of body fluids

Excessively high levels of any of the individual components of Isofundin may be associated with specific symptoms that your doctor should be aware of.

In case of overdose, the infusion should be stopped immediately and corrective treatment initiated.

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

Medicine questions

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4. Possible side effects

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

Some side effects can be due to the administration technique. These can include feverish states, infections at the injection site, local reaction or pain, venous irritation, blood clots in veins, or inflammation of the veins extending from the injection site.

Allergic reactions characterized by hives have been occasionally reported after magnesium salt infusion.

The frequency of these reactions cannot be estimated from the available data.

In rare cases, intestinal paralysis has been reported after magnesium sulfate infusion. This can affect up to 1 in 1000 people.

Reporting of side effects

If you experience any side effects, talk to your doctor or pharmacist, even if they are not listed in this leaflet. You can also report them directly through the Spanish Medicines and Healthcare Products Agency (AEMPS) website: www.notificaRAM.es

By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Isofundin

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

Glass bottles and polyethylene plastic bottles: Do not refrigerate or freeze. Plastic bags: Do not store above 25°C. Do not refrigerate or freeze.

Do not use this medicine if the solution contains particles, is cloudy, or discolored. Do not use this product if the packaging is damaged or shows signs of deterioration. This product is for single use; partially used containers must not be reconnected.

Do not use this medicine after the expiry date which is stated on the label or carton after EXP.

6. Contents of the pack and other information

Composition of Isofundin

The active ingredients of Isofundin solution for infusion are:

Per 1000 ml, this medicine contains:

Sodium chloride 6.8 g

Potassium chloride 0.3 g

Magnesium chloride hexahydrate 0.2 g

Calcium chloride dihydrate 0.37 g

Sodium acetate trihydrate 3.27 g

Malic acid 0.67 g

The other ingredients are: Water for injections, sodium hydroxide (for pH adjustment).

Appearance and packaging of the product

Isofundin is a solution for infusion (for intravenous administration with a drip). It is a clear and colorless solution.

It is available in:

  • Polyethylene plastic bottles containing 250 ml, 500 ml, or 1000 ml, available in packs of 1 or 10 bottles
  • Plastic bags containing 250 ml, 500 ml, or 1000 ml, available in packs of 1 or 20 bags (250 ml and 500 ml) or 1 or 10 bags (1000 ml)
  • Glass bottles containing 250 ml, 500 ml, or 1000 ml, available in packs of 1 or 10 bottles (250 ml and 500 ml) or 1 or 6 bottles (1000 ml).

Marketing authorization holder

B|BRAUN

  • Braun Melsungen AG

Carl-Braun-Strasse, 1 Postal address:

34212 Melsungen 34209 Melsungen

Germany

Tel.: + 49-5661-71-0

Fax.: +49-5661-71-4567

Manufacturer

B.Braun Melsungen AG

Carl-Braun-Strasse, 1

34212 Melsungen

Germany

  • Braun Medical, S.A.

Ctra. de Terrassa, 121

08191-Rubí (Barcelona)

Spain

  • Braun Avitum AG

Schwarzenberger Weg 73-79

34212 Melsungen

Germany

This medicine is authorized in the Member States of the European Economic Area under the following names:

Austria

Sterofundin ISO Infusionslösung

Belgium

Sterofundin ISO oplossing voor infusie

Bulgaria

Sterofundin ISO

Cyprus

Sterofundin ISO

Czech Republic

Ringerfundin B.Braun

Denmark

Ringerfundin

Estonia

Sterofundin ISO

Finland

Ringerfundin infuusioneste, liuos

France

Isofundine, solution pour perfusion

Germany

Sterofundin ISO Infusionslösung

Greece

Sterofundin ISO

Hungary

Ringerfundin B. Braun infúzio

Italy

Sterofundin

Latvia

Sterofundin ISO

Lithuania

Sterofundin ISO infuzinis tirpalas

Luxembourg

Sterofundin Iso solution pour perfusion

Malta

Sterofundin ISO

Netherlands

Sterofundin ISO

Norway

Ringerfundin infusjonsvaeske

Poland

Sterofundin ISO

Portugal

Isofundin, solução para perfusão

Romania

Sterofundin ISO solutie perfuzabila

Slovenia

Sterofundin ISO raztopina za infundiranje

Slovakia

Ringerfundin

Spain

Isofundin, solución para perfusión

Sweden

Ringerfundin infusionsvästka, lösning

United Kingdom

Sterofundin ISO solution for infusion

Date of last revision of this leaflet: February 2018

Detailed information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS) (http://www.aemps.gob.es/)

-----------------------------------------------------------------------------------------------------------------------This information is intended only for healthcare professionals:

Symptoms associated with excessive overdose of individual components of the solution:

  • Symptoms of hyperkalemia:

Paresthesia in the limbs, muscle weakness, paralysis, cardiac arrhythmia, asystole, and mental confusion.

  • Symptoms of hypermagnesemia:

Loss of tendon reflexes and respiratory depression, nausea, vomiting, skin flushing, thirst, decreased blood pressure, drowsiness, confusion, muscle weakness, bradycardia, coma, and cardiac arrest.

  • Symptoms of hyperchloremia:

Loss of bicarbonate and acidosis.

  • Symptoms of hypercalcemia:

Anorexia, nausea, vomiting, constipation, abdominal pain, muscle weakness, mental disorders, polydipsia, polyuria, nephrocalcinosis, and, in severe cases, cardiac arrhythmias and coma. The intravenous injection of calcium salts too quickly can cause a chalky taste and flushing.

  • Symptoms of excessive overdose of acetate and malate:

Metabolic alkalosis, which can cause mood changes, fatigue, shortness of breath, muscle weakness, and cardiac arrhythmia, and, in the presence of low calcium levels, also spasms and cramps.

Handling

The solution should be administered with sterile equipment using aseptic technique. The equipment should be prepared with the solution to prevent air from entering the system.

If plastic bags are used, only the outer bag should be removed immediately before use.

If administration is by rapid infusion under pressure, all air should be eliminated from the plastic container and infusion equipment before infusion, as otherwise there is a risk of producing gas embolism during infusion.

During administration, fluid balance, plasma electrolyte concentrations, and pH should be monitored. Isofundin can be administered as long as fluid replacement is indicated.

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Dmytro Horobets

Family medicine 7 years exp.

Dr. Dmytro Horobets is a licensed family medicine physician in Poland, specialising in endocrinology, diabetology, obesity management, gastroenterology, pediatrics, general surgery, and pain medicine. He offers online consultations for adults and children, providing personalised medical support for a wide range of acute and chronic health concerns.

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  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
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Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

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Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques. For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance. Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults. In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions. Patients commonly seek his care for: 

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Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.

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Yevgen Yakovenko

General surgery 12 years exp.

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

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Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
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Joao Silva

General medicine 6 years exp.

Dr. João Silva is a physician with training and experience in the field of General and Family Medicine, dedicated to providing healthcare focused on the well-being and quality of life of his patients. Throughout his professional career, he has developed broad clinical competencies, striving to maintain a medical practice based on scientific evidence and continuous knowledge updates.

Between 2013 and 2019, he completed the Integrated Master's Degree in Medicine at the Abel Salazar Institute of Biomedical Sciences in Porto, where he acquired a solid academic and clinical education.

Subsequently, between January 2021 and December 2021, he completed the General Internship at the Entre Douro e Vouga Hospital Center in Santa Maria da Feira, where he had the opportunity to work in different hospital settings and deepen his competencies in several areas of medicine.

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Bulat Garipov

General medicine 15 years exp.

Dr. Bulat Garipov is a radiologist with more than 15 years of experience, specializing in magnetic resonance imaging (MRI). Throughout his professional career, he has worked in leading diagnostic imaging centers, both in on-site practice and teleradiology, which has allowed him to develop a broad and versatile approach to radiology.

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Frequently Asked Questions

Is a prescription required for ISOFUNDIN SOLUTION FOR INFUSION?
ISOFUNDIN SOLUTION FOR INFUSION requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in ISOFUNDIN SOLUTION FOR INFUSION?
The active ingredient in ISOFUNDIN SOLUTION FOR INFUSION is electrolytes. This information helps identify medicines with the same composition but different brand names.
Who manufactures ISOFUNDIN SOLUTION FOR INFUSION?
ISOFUNDIN SOLUTION FOR INFUSION is manufactured by B. Braun Melsungen Ag. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of ISOFUNDIN SOLUTION FOR INFUSION online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether ISOFUNDIN SOLUTION FOR INFUSION is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to ISOFUNDIN SOLUTION FOR INFUSION?
Other medicines with the same active substance (electrolytes) include SODIUM ACETATE 1M FRESENIUS KABI CONCENTRATE FOR PERFUSION SOLUTION, APIROSERUM SODIUM CHLORIDE 2% SOLUTION FOR INFUSION, APIROSERUM RINGER'S SOLUTION FOR INFUSION. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
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