Testosterone undecanoate
Nebido contains the active substance testosterone, a male hormone. Nebido is injected into the muscle, where it is then stored and released slowly over a certain period of time. Nebido is used in adult men as testosterone replacement therapy for various diseases that result from a lack of testosterone in the body (male hypogonadism). To diagnose the disease, two independent measurements of testosterone levels in the blood and the following clinical symptoms are required:
Nebido is notintended for use in women.
Before starting treatment with Nebido, you should discuss it with your doctor. You should tell your doctorif you have or have had:
No studies have been conducted in patients with liver function disorders. Nebido should not be prescribed if the patient has or has had a liver tumor (see section "When not to use Nebido").
Nebido is notintended for use in children and adolescents. There is no data on the use of the medicine in men under 18 years of age.
There is no need to change the dosage in patients over 65 years of age. (See section "Medical examination/Observation")
Nebido is nota suitable means of accelerating muscle development in healthy individuals or enhancing physical performance.
Nebido may give positive results in doping tests.
This medicine should always be taken according to the doctor's instructions.
Abuse of testosterone, especially when using excessive amounts of this medicine in monotherapy or in combination with other anabolic androgenic steroids, can cause serious health problems related to the heart and blood vessels (which can lead to death), mental health, and/or liver. Individuals who abuse testosterone may become dependent, which can lead to withdrawal symptoms after significant dose changes or sudden cessation of use. This medicine should not be abused, either in monotherapy or in combination with other anabolic androgenic steroids, as it is associated with serious health risks (see section 4 "Possible side effects").
Male hormones can accelerate the development of prostate cancer and cause prostate enlargement (benign prostatic hyperplasia). Before administering Nebido, the doctor will examine the patient to ensure that they do not have prostate cancer.
The doctor will regularly examine the prostate and breasts, especially in elderly patients, and order blood tests.
During the use of hormonal substances such as androgen compounds, cases of benign (non-cancerous) and malignant (cancerous) liver tumors have been observed.
You should tell your doctor or pharmacist about all medicinesyou are currently taking or have recently taken, including those that are available without a prescription. The doctor may decide to change the dosage if you are taking the following medicines:
You should inform your doctor if you have a blood clotting disorder, as this information is important for the doctor to decide on the administration of Nebido injection.
Nebido may also affect the results of certain laboratory tests (e.g., assessing thyroid function). You should inform your doctor or laboratory staff that you are using Nebido.
Nebido is not intended for use in women and should not be used in pregnant or breastfeeding women.
Systematic treatment with high doses of testosterone may reversibly inhibit or reduce sperm production (see also "Possible side effects").
Nebido does not affect the ability to drive or use machines.
This medicine contains 2000 mg of benzyl benzoate in each ampoule/vial in 4 ml of solution, which corresponds to 500 mg/ml of solution.
The doctor will prescribe the injection of Nebido (1 ampoule/vial) very slowly into the muscle. The injection will be repeated every 10 to 14 weeks. This is enough to maintain the testosterone level at the appropriate level, without the effect of hormone accumulation in the blood.
Nebido is intended for intramuscular injection only. The person administering the injection will make sure not to administer the medicine into a blood vessel; see section "Method of administration".
The doctor will assess the testosterone level in the blood before starting treatment and in its early phase.
The doctor may prescribe the next injection after 6 weeks to quickly achieve the appropriate testosterone level. This will depend on the symptoms in the patient and the testosterone levels.
The intervals between injections should be within the recommended period of 10 to 14 weeks.
The doctor will regularly check the testosterone level in the blood at the end of the interval between injections to ensure it is correct. If the level is too low, the doctor may decide to administer the medicine more frequently. If the level is too high, the doctor may decide to administer the medicine less frequently. It is essential to attend each injection appointment. Otherwise, it will not be possible to maintain the optimal testosterone level.
If you feel that the effect of Nebido is too strong or too weak, you should consult your doctor.
Symptoms of using a higher dose of Nebido may include:
If any of the above symptoms occur, you should consult your doctor. The doctor will decide to administer the injections less frequently or stop the treatment.
Like all medicines, Nebido can cause side effects, although not everybody gets them.
The most common side effectsare acne and pain at the injection site.
Common side effects(may affect up to 1 in 10 people):
Uncommon side effects(may affect up to 1 in 100 people):
After administering Nebido, anaphylactic reactions have been observed.
During the use of other testosterone-containing medicines, in addition to the above side effects, the following have also been reported: nervousness, hostility, periodic breathing pauses during sleep, various skin reactions, including dandruff and oily skin, accelerated hair growth, more frequent erections, and very rarely, yellowing of the skin and eyes (jaundice).
Using high doses of testosterone often leads to inhibition or reduction of sperm production in the body. These symptoms disappear after treatment is stopped. Testosterone replacement therapy for impaired hormonal function of the testes (hypogonadism) may rarely cause prolonged, painful erections (priapism). High doses or prolonged use of testosterone can occasionally lead to water retention in the body and edema (swelling caused by water retention).
The use of testosterone-containing products may be associated with an overall increased risk of red blood cell count, hematocrit (percentage of red blood cells in the blood), and hemoglobin concentration (a component of red blood cells that carries oxygen), observed in periodic blood tests.
If you experience any side effects, including any side effects not listed in this leaflet, you should tell your doctor or pharmacist. Side effects can be reported directly to the Department of Drug Safety Monitoring, Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products, Al. Jerozolimskie 181C, 02-222 Warsaw, tel.: +48 22 49 21 301, fax: +48 22 49 21 309, website: https://smz.ezdrowie.gov.pl
Side effects can also be reported to the marketing authorization holder.
Reporting side effects will help to gather more information on the safety of this medicine.
The medicine should be stored out of sight and reach of children.
There are no special precautions for storing the medicinal product.
Do not usethis medicine after the expiry date stated on the carton and label after "Expiry date". The expiry date refers to the last day of the month.
Medicines should notbe disposed of via wastewater or household waste. You should ask your pharmacist how to dispose of medicines that are no longer needed. This will help protect the environment.
The active substance of Nebido is testosterone undecanoate 250 mg/ml (which corresponds to 157.9 mg of testosterone).
One ampoule/vial contains 1000 mg of testosterone undecanoate (which corresponds to 631.5 mg of testosterone).
In addition, the medicine contains: benzyl benzoate and refined castor oil.
Nebido is a clear, colorless to yellowish-brown oily solution.
The pack contains:
1 ampoule made of brown glass / vial made of brown glass with 4 ml of solution for injection.
Marketing authorization holder
Grünenthal Pharmaceuticals GmbH & Co. KG
Philipp-Ott-Strasse
51373 Leverkusen
Germany
Manufacturer
Bayer AG
Müllerstrasse 178
D-13353 Berlin
Germany
or
EVER Pharma Jena GmbH
Brüsseler Strasse 18
07747 Jena
Germany
or
Grünenthal GmbH
Zieglerstrasse 6
52078 Aachen
Germany
or
Grünenthal Pharmaceuticals GmbH & Co. KG
Philipp-Ott-Straße 3
51373 Leverkusen
Germany
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The following information is intended for healthcare professionals only:
When stored at low temperatures, the properties of this oil-based solution may change temporarily (e.g., higher viscosity, cloudiness). If the medicine is stored at low temperatures, it should be brought to room temperature or body temperature before use.
The solution for intramuscular injection should be inspected visually before use; only solutions without solid particles can be used.
The contents of the ampoule/vial should be injected intramuscularly immediately after opening.
Nebido is intended for single use only; any remaining solution should be discarded.
Method of administration:
Particular care should be taken to avoid injecting into a blood vessel.
Like all oil solutions, Nebido should be injected intramuscularly and very slowly.
Pulmonary oil microembolism can rarely lead to symptoms such as: cough, shortness of breath, feeling unwell, excessive sweating, chest pain, dizziness, tingling, or fainting. These reactions may occur during or immediately after the injection and are reversible. Treatment is usually supportive, e.g., by administering additional oxygen.
After administering Nebido, anaphylactic reactions have been observed.
Warnings:
In patients treated with testosterone, prostate and breast examinations should be performed carefully and regularly, according to the recommended procedure (rectal examination, PSA measurement). These should be performed at least once a year, and in elderly patients and those at increased risk (clinical and family factors), twice a year.
In addition to laboratory tests for testosterone levels, in patients treated with androgens in the long term, the following laboratory parameters should be monitored periodically: hemoglobin, hematocrit, liver function tests, and lipid profile.
In patients with severe heart, liver, or kidney failure or coronary artery disease, treatment with testosterone may cause serious complications, including edema, with or without congestive heart failure. In such cases, treatment should be discontinued immediately.
On the ampoule, below the colored mark, there is a notch that eliminates the need to score the neck. Before opening, make sure the solution from the top part of the ampoule has flowed to the bottom part. To open the ampoule, use both hands, holding the bottom part of the ampoule with one hand and breaking off the top part in the opposite direction of the colored mark.
The vial is intended for single use. The contents of the vial should be injected intramuscularly immediately after drawing into a syringe. After removing the plastic cap (A), do not remove the metal ring (B) or the flanged cap (C).
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