Package Leaflet: Information for the User
SYNTHAMIN 9 REFORMULATED solution for infusion
Read all of this leaflet carefully before you start using this medicine because it contains important information for you.
Contents of the pack:
Synthamin is a sterile solution that contains a large number of compounds called amino acids. These are the building blocks for proteins that are vital for your body. It also contains some chemical substances called electrolytes, which are very important for your body to function properly.
Together with other compounds such as minerals and vitamins, it is used to provide nutrition (food) directly into your blood when you cannot take food by mouth. It is important that you are given this medicine to help you improve.
It is usually given together with other nutrition solutions.
Synthamin must not be given to you if you have any of the following conditions
medicine (including those listed in section 6).
Warnings and precautions
Talk to your doctor or nurse before you start using Synthamin
If any abnormal signs or symptoms of hypersensitivity or allergic reactions appear, the infusion must be stopped immediately.
When used in newborns and children under 2 years, the solution (in the bags and administration equipment) must be protected from light exposure until the end of administration (see section 2).
Using Synthamin with other medicines
Tell your doctor or nurse if you are taking or have recently taken or might take any other medicines.
No interaction studies have been performed with Synthamin.
Due to the potassium content of Synthamin, special care is necessary in patients treated with potassium-sparing diuretics (e.g., amiloride, spironolactone, triamterene), with angiotensin-converting enzyme (ACE) inhibitors, with angiotensin II receptor antagonists, or with immunosuppressants tacrolimus or cyclosporin due to the risk of hyperkalemia.
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, or think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before using this medicine.
The safety of using amino acid solutions in pregnant or breastfeeding women has not been established. Your doctor will carefully weigh the benefits and possible risks before prescribing Synthamin.
Driving and using machines
Synthamin does not affect your ability to drive or use machines.
Use in adults
Your doctor will determine an infusion rate based on your needs and clinical condition, which will depend on your weight, your body's needs, the amount of sugar solution (such as glucose) that can be given to you, and the reason for your treatment.
The solution will be given to you through a slow drip injection (called infusion) into a large vein in your chest (the superior vena cava). The drip rate will not be more than 70 ml per hour and you will not receive more than 40 ml per kilogram of body weight in a day.
You will not receive blood transfusions through this tube.
Use in children
When used in newborns and children under 2 years, the solution (in the bags and administration equipment) must be protected from light exposure until the end of administration (see section 2).
In children, the dose of parenteral nutrition should be adjusted individually based on the patient's requirements for amino acids, electrolytes, and energy.
If you are given too much Synthamin
Since your doctor will be the one giving you Synthamin, it is unlikely that you will be given too much. However, if you think you have received more than you should, tell your doctor or nurse.
In case of overdose or accidental ingestion, consult the Toxicology Information Service. Telephone 915.620.420
Like all medicines, this medicine can cause side effects, although not everybody gets them.
There have been reports of a stinging pain and redness at the site where the medicine is given into your vein. Allergic reactions, including a severe allergic reaction called anaphylaxis, and other skin reactions (hives, rash, itching, redness), gastrointestinal reactions, and circulatory (shock) or respiratory reactions have also been reported.
The following may appear:
Reporting of side effects
If you experience any side effects, talk to your doctor or nurse, even if it is possible side effects not listed in this leaflet. You can also report side effects 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.
Keep this medicine out of the sight and reach of children.
When used in newborns and children under 2 years, the solution (in the bags and administration equipment) must be protected from light exposure until the end of administration (see section 2).
Do not store above 25°C.
Protect from light until immediately before use.
Do not refrigerate.
Do not use this medicine after the expiry date which is stated on the bag and carton after EXP. The expiry date is the last day of the month stated.
Discard partially used containers. Any remaining solution should be discarded by a healthcare professional.
Composition of Synthamin
The active substances per 1000 ml are: Glycine 5.66 g, L-Alanine 11.40 g, L-Arginine 6.32 g, L-Phenylalanine 3.08 g, L-Histidine 2.64 g, L-Isoleucine 3.30 g, L-Leucine 4.02 g, L-Lysine hydrochloride 4.00 g, L-Methionine 2.20 g, L-Proline 3.74 g, L-Serine 2.75 g, L-Tyrosine 22 mg, L-Threonine 2.31 g, L-Tryptophan 99 mg, L-Valine 3.19 g, Sodium acetate trihydrate 4.32 g, Potassium phosphate dibasic 5.22 g, Sodium chloride 2.24 g, Magnesium chloride hexahydrate 1.02 g.
Approximate electrolyte concentrations (mmol/l) of the solution:
Sodium: 70
Potassium: 60
Magnesium: 5
Acetate (1): 100
Chloride: 70
Phosphate (as HPO4-2): 30
Amino acid concentration: 55 g/l
Nitrogen equivalence: 9.1 g/l
Protein equivalence: 57 g/l
Essential AA/Total AA ratio: 0.45
pH: approximately 6
Calculated osmolality (mOsm/l): 850
(1) Acetate is added as sodium acetate and/or as acetic acid for pH adjustment.
Appearance and packaging
Synthamin is a clear solution, free from visible particles. It is presented in Viaflex plastic bags. Each bag is packaged in a protective plastic overbag.
The bag sizes may be 500 and 1000 ml.
The bags are supplied in cartons, each containing the following quantities:
Not all pack sizes may be marketed.
Marketing authorisation holder
Baxter S.L.
Pouet de Camilo 2, 46394 Ribarroja del Turia (Valencia)
Spain
Manufacturer
Baxter S.A.
Boulevard René Branquart, 80
7860 Lessines
Belgium
Date of last revision of this leaflet: March 2020
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS) http://www.aemps.gob.es/
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This information is intended only for healthcare professionals
Posology and method of administration
Posology
The total daily dose of these solutions depends on the patient's metabolic needs and clinical response.
Probably, the best procedure to determine individual nitrogen needs is to determine fluid balance. Daily doses of amino acids of approximately 1.0-1.5 g/kg body weight in adults and 2-3 g/kg body weight in children, with an adequate amount of calories (around 180 kcal/g nitrogen or +/-30 kcal/g amino acids), are generally sufficient to meet protein needs and promote a positive nitrogen balance.
The use of higher doses, mainly in children, should be monitored by more frequent laboratory tests. The infusion rate should not exceed 0.1 g/kg per hour. The maximum infusion rate depends on the amino acid concentration used. In the case of Synthamin 9 (5.5% Amino Acids), it will be 140 ml/h.
It is necessary to ensure the maintenance of serum potassium levels. A potassium amount equivalent to 60-180 mEq/day may be indicated. It may be useful to add electrolytes and potassium, depending on the amount of carbohydrates administered and metabolized by the patient. It is important to frequently monitor serum electrolyte levels, mainly phosphate, magnesium, and chloride.
Individually, vitamins, trace elements, and other components (including glucose and lipids) may be added to the parenteral nutrition regimen to meet nutritional needs and prevent deficiencies and the development of complications.
The co-administration of a fat emulsion should be assessed when prolonged parenteral nutrition is required to prevent essential fatty acid deficiency (EFAD).
In the case of peripheral administration, the osmolality of the solution should be taken into account.
The solution should be visually inspected for particles and color before administration.
The infusion rate of the solution should be gradually increased during the first hour and adjusted according to the dose to be administered, the daily volume indicated, and the duration of the infusion.
The use of a final filter is recommended during the administration of parenteral nutrition solutions.
Method of administration
Hypertonic mixtures of amino acids and glucose are preferably administered through a central catheter. If the central route is not indicated, it can be administered peripherally to patients who need parenteral nutrition, amino acid solutions together with glucose solutions of appropriate concentration, and lipid emulsions at the same time.
Do not administer unless the solution is clear and colorless or slightly yellow and the packaging is in good condition.
When used in newborns and children under 2 years, the solution (in the bags and administration equipment) must be protected from light exposure until the end of administration.
Special warnings and precautions for use:
Exposure to light of parenteral nutrition solutions for intravenous use, especially after mixing with trace elements or vitamins, may have adverse effects on the clinical outcome of newborns due to the generation of peroxides and other degradation products.
When used in newborns and children under 2 years, Synthamin must be protected from ambient light until the end of administration.
Handling and preparation
Instructions for use of the Viaflex bag
Use an aseptic technique.
In case of additions to the bag:
Use an aseptic technique.
Check the stability and compatibility of the additives.
Prepare the injection point of the bag.
Puncture the injection point and inject the additives using a syringe or a reconstitution device.
Mix the contents of the bag and the additives.
Inspect the final mixture for color and foreign particles.
Check the bag for absence of leaks.
Ensure that adequate storage conditions are met for the additive.
Administration of the infusion:
Do not administer blood before, at the same time, or after, through the same infusion equipment due to the risk of pseudoagglutination.
Do not connect bags in series to avoid a gas embolism due to residual air in the primary container.
Discard after a single use.
Discard any remaining portion.
Do not reconnect partially used bags.
Special precautions for disposal and other handling:
When used in newborns and children under 2 years, it must be protected from light exposure until the end of administration. Exposure of Synthamin to ambient light, especially after mixing with trace elements or vitamins, generates peroxides and other degradation products that can be reduced if the product is protected from light exposure.
Baxter, Viaflex, and Synthamin are registered trademarks of Baxter International Inc.