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Nutriflex Basal solution for infusion – patient leaflet, side effects, dosage

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

Patient leaflet - Nutriflex Basal solution for infusion

1. What Nutriflex basal is and what it is used for

The product contains substances (nutrients) called amino acids, salts (electrolytes) and carbohydrates (glucose) which are essential for the body to grow or to recover and calories in the form of carbohydrates. You are given this product by a vein drip (infusion) because you are unable to eat adequately or cannot be fed via a tube.

Nutriflex basal is specifically indicated for adults and children aged 2-17 years with mild to moderate catabolism, a condition where patients are burning up their stores of energy, protein, etc. faster than they can be replaced.

2. What you need to know before you use Nutriflex basal

Do not use Nutriflex basal

  • if you are allergic to the active substances or any of the other ingredients of this medicine (listed in section 6)
  • if you have an inborn error of amino acid metabolism, where you need a special protein diet
  • if you have abnormally high blood sugar levels that need more than 6 units of insulin per hour to be controlled
  • if you have abnormally high levels of acidic substances in the blood (acidosis)
  • if you have bleeding within the skull or the spinal cord
  • if you have severe liver failure (severe hepatic insufficiency)
  • if you have severe kidney failure (severe renal insufficiency) without access to treatment with an artificial kidney (haemofiltration or dialysis)

As with other medicines of this type Nutriflex basal should not be given if you have:

  • acute phase of heart attack (myocardial infarction) or stroke
  • any kind of poorly controlled metabolic disorder, for example state of unconsciousness (coma), the cause of which is not known or insufficient supply of oxygen to tissues or decompensated diabetes mellitus
  • life-threatening blood circulation problems such as those that can occur for example if you are in a state of collapse or shock, have accumulation of fluid in your lungs (pulmonary oedema) or your water balance is disturbed

Nutriflex basal must not be given to newborn infants, infants and toddlers that are under two years old.

Warnings and precautions

Talk to your healthcare professional before using Nutriflex basal

  • if you have impaired heart or kidney function
  • if you have disturbances in fluid, salt or acid-base balance, for example low body fluid and salt content (hypotonic dehydration) or low sodium or potassium levels in your blood
  • if you have abnormally high blood sugar levels.

Special care will be taken to adjust and control your daily dose if you have impairment of kidneys, liver, adrenal glands, heart or lungs. Your doctor will also take special care for you if your blood-brain barrier is damaged, because then this medicine may cause an increase of the pressure within your skull or the spinal cord.

If you are in a state of severe underfeeding, special care will be taken to build up your intravenous feeding gradually, accompanied by adequate controls and necessary supplies of electrolytes, in particular potassium, magnesium and phosphate.

This medicine contains glucose (a sugar), so this may affect your blood sugar level. Blood samples may have to be taken to check this. If your infusion has accidentally been stopped suddenly, your blood sugar level may also drop suddenly. Your doctor will take this into consideration especially when your ability to metabolise glucose is impaired (e.g. if you have diabetes) or when children below the age of 3 receive this solution. Therefore especially after stopping the infusion your blood sugar level will be carefully monitored.

Moreover controls of your blood salt levels, the water balance, the acid-base balance and of blood cell counts, blood clotting, kidney and liver function are necessary.

Adequate supply of vitamins (in particular vitamin B1) will be ensured. The doctor will also take measures to ensure that your body’s fluid and electrolyte requirements are met. In addition to Nutriflex basal you will receive further nutrients (foodstuffs) in order to fully cover your requirements.

As with all intravenous solutions strict aseptic precautions are necessary for the infusion of Nutriflex basal.

Children and adolescents

Concerning sudden drop of the blood sugar level of your child after accidental stop of the infusion, please refer also to section ’Warnings and precautions’ above.

Your doctor will not give Nutriflex basal to children under two years old.

Other medicines and Nutriflex basal

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

Nutriflex basal can interact with some other medicines. Please tell your doctor if you are taking or receiving any of the following:

  • medicines to treat inflammation (corticosteroids)
  • hormone preparations that affect your fluid balance (adreno corticotropic hormone [ACTH])
  • medicines to promote urine flow (diuretics) such as spironolactone, triamterene or amiloride
  • medicines to treat high blood pressure (ACE inhibitors) such as captopril and enalapril
  • medicines to treat high blood pressure or heart problems (angiotensin-II-receptor antagonists) such as losartan and valsartan
  • medicines used in organ transplants such as cyclosporine and tacrolimus.

Pregnancy, breast-feeding and fertility

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

Pregnancy

If you are pregnant, you will receive this medicine only if the doctor considers it absolutely necessary for your recovery.

Breast-feeding

Breast-feeding is not recommended if women need intravenous feeding in that time.

Fertility

No data available.

Driving and using machines

This medicine is normally given to immobile patients, e.g. in a hospital or clinic which would exclude driving and using machines. However, the medicine itself has no effect on the ability to drive or use machines.

3. How to use Nutriflex basal

This medicine will be administered to you by intravenous infusion (drip), that is, through a small tube directly into a large vein.

Before infusion the solution must always be brought to room temperature.

Your doctor will decide how much of this medicine you need and for how long you will require treatment with this medicine.

The recommended daily dose for adults is up to 40 ml of solution for infusion per kg body weight. Your doctor will determine the exact dose.

Use in children and adolescents

There are special dosage guidelines for children and adolescents between 2 and 17 years old. Your doctor knows this guidelines and will determine the dose accordingly.

If you received more Nutriflex basal than you should

It is unlikely that you would receive an overdose of this medicine on proper administration. However, if you are given too much of this medicine this may lead to:

  • abnormally high body fluid levels (hyperhydration)
  • abnormally high amounts of urine (polyuria)
  • disorders of your body salt composition (electrolyte imbalance)
  • water on your lungs (pulmonary oedema)
  • loss of amino acids through the urine and disturbed amino acid balance
  • accumulation of acidic substances in your blood (metabolic acidosis)
  • feeling sick, vomiting, shivering, headache
  • high levels of nitrogen in the blood (hyperammonaemia)
  • abnormally high blood sugar levels (hyperglycaemia)
  • glucose in the urine (glucosuria)
  • fluid deficit (dehydration)
  • blood much more concentrated than normal (hyperosmolality)
  • unconsciousness caused by extremely high blood sugar levels

    (hyperglycaemic-hyperosmolar coma).

If any of these symptoms occur, the infusion will be stopped immediately. Your doctor will decide on any additional treatment to be given. The infusion will not be started again until you have recovered.

If you have any further questions on the use of this medicine, ask your healthcare professional.

4. Possible side effects

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

Side effects are mainly caused by overdose or too rapid infusion. They will usually disappear when the infusion is stopped.

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

  • Feeling sick (nausea), vomiting and decreased appetite

If these side effects occur, your treatment should be stopped, or if the doctor decides, it may be continued but at a lower dose level.

Reporting of side effects

If you get any side effects, talk to your doctor 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 Nutriflex basal

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

Do not store above 25°C.

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

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

6. Contents of the pack and other information

What Nutriflex basal contains

  • The active substances are amino acids, glucose and electrolytes.

Each bag contains after mixing:

1000 ml

2000 ml

Isoleucine

1.88 g

3.76 g

Leucine

2.50 g

5.00 g

Lysine hydrochloride equivalent to lysine

2.27 g 1.82 g

4.54 g 3.64 g

Methionine

1.56 g

3.12 g

Phenylalanine

2.81 g

5.62 g

Threonine

1.45 g

2.90 g

Tryptophan

0.46 g

0.92 g

Valine

2.08 g

4.16 g

Arginine monoglutamate equivalent to arginine equivalent to glutamic acid

3.98 g 2.16 g 1.82 g

7.96 g 4.32 g 3.64 g

Histidine hydrochloride monohydrate

equivalent to histidine

1.35 g

1.00 g

2.70 g

2.00 g

Alanine

3.88 g

7.76 g

Aspartic acid

1.20 g

2.40 g

Glutamic acid

0.98 g

1.96 g

Glycine

1.32 g

2.64 g

Proline

2.72 g

5.44 g

Serine

2.40 g

4.80 g

Magnesium acetate tetrahydrate

1.23 g

2.46 g

Sodium acetate trihydrate

3.20 g

6.40 g

Potassium dihydrogen phosphate

1.74 g

3.48 g

Potassium hydroxide

0.96 g

1.92 g

Sodium hydroxide

0.10 g

0.20 g

Glucose monohydrate equivalent to glucose

137.5 g 125.0 g

275.0 g 250.0 g

Sodium chloride

1.40 g

2.80 g

Calcium chloride dihydrate

0.53 g

1.06 g

  • The other ingredients are citric acid monohydrate and water for injections.

B|BRAUN PACKAGE LEAFLET: INFORMATION FOR THE USER

Nutriflex® basal solution for infusion

Amino acids / Glucose / Electrolytes

0710/NP71032/0626

B. Braun Melsungen AG

34209 Melsungen, Germany B|BRAUN

Marketing Authorisation Holder

B. Braun Melsungen AG

Carl-Braun-Straße 1

34212 Melsungen, Germany

Postal address

34209 Melsungen

Germany

Phone: +49-5661-71-0

Fax: +49-5661-71-4567

Manufacturer

B. Braun Medical AG

Route de Sorge 9

1023 Crissier, Switzerland

Manufacturer responsible for batch release

B. Braun Melsungen AG

Street address:

Carl-Braun-Straße 1

34212 Melsungen

Germany

B. Braun Medical Limited

Brookdale Road

Thorncliffe Park Estate

Chapeltown

Sheffield

S35 2PW

United Kingdom

This leaflet was last revised in 06/2026.

Electrolytes:1000 ml2000 ml
Sodium49.9 mmol99.8 mmol
Potassium30.0 mmol60.0 mmol
Calcium3.6 mmol7.2 mmol
Magnesium5.7 mmol11.4 mmol
Chloride50.0 mmol100.0 mmol
Phosphate12.8 mmol25.6 mmol
Acetate35.0 mmol70.0 mmol
1000 ml2000 ml
Amino acid content32 g64 g
Nitrogen content4.6 g9.2 g
Carbohydrate content125 g250 g
1000 ml2000 ml

Energy in the form of

amino acids [kJ (kcal)]

536 (128)1072 (256)

Energy in the form of

carbohydrates [kJ (kcal)]

2093 (500)4186 (1000)
Total energy [kJ (kcal)]2629 (628)5258 (1256)
Theoretical osmolarity [mOsm/l]11501150
pH4.8 – 6.04.8 – 6.0

What Nutriflex basal looks like and contents of the pack

This medicine is a solution for infusion, i.e. it is administered through a

small tube into a vein.

Nutriflex basal is presented in an infusion bag with two compartments.

The lower compartment contains glucose while the upper compartment

contains the amino acid solution. The glucose and the amino acid

solutions are clear and colourless or slightly yellowish.

The product is supplied in two-chamber plastic bags containing:

  • 1000 ml (400 ml of amino acids solution + 600 ml of glucose solution)
  • 2000 ml (800 ml of amino acids solution + 1200 ml of glucose solution)

Pack sizes: 5 × 1000 ml, 5 × 2000 ml

Not all pack sizes may be marketed.

0710/NP71032/0626

The following information is intended for healthcare professionals only:

The solution should always be brought to room temperature prior to infusion.

Only use Nutriflex basal if the solution is clear and the bag undamaged. After infusion, any remaining solution should never be stored for later use.

Preparation of the mixed solution:

Immediately before use the internal peel seam between the two compartments must be opened allowing the respective contents to be aseptically mixed.

Remove the bag from its protective bag and proceed as follows:

  • Open out the bag and lay on a solid surface
  • Open the peel seam by using pressure with both hands
  • Briefly mix the contents of the bag together.

An additive port is provided for admixing of supplements to Nutriflex basal.

The medicinal product must be administered via a filter with a pore size of 0.2 μm.

When admixing other solutions or fat emulsions to Nutriflex basal, aseptic precautions must be strictly observed. Fat emulsions can be easily admixed by means of a special transfer set.

Maximum infusion rates:

The maximum infusion rate for adults, children and adolescents from 2 to 17 years is 2.0 ml per kg body weight per hour.

Storage after mixing of the contents

Ideally after mixing the two solutions, Nutriflex basal should be administered immediately but if immediate administration is not possible in special circumstances it can be stored for up to 7 days at room temperature and up to 14 days if stored in a refrigerator at 2 – 8°C (including administration time). Partially used containers must not be stored for later use.

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 03551/0022

Last revision stated in the text: June 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 Nutriflex Basal solution for infusion

Active substances Sodium chloride, Glucose monohydrate, L-Methionine, Glycine, L-Phenylalanine, Calcium chloride, L-Aspartic acid, L-Proline, Magnesium acetate tetrahydrate, Sodium acetate trihydrate
Marketing authorisation PL 03551/0022

Sources: the MHRA product information (products.mhra.gov.uk). Contains public sector information licensed under the Open Government Licence v3.0.