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Testosterone undecanoate

Testosterone undecanoate is a long ether of natural male hormone on an oil basis. It is used in the treatment of hypogonadism, and athletes use a pharmaceutical product to build muscle and improve strength.

Testosterone undecanoate. Medical definition

When prescribing Testosterone undecanoate, where to buy the medicine, doctors tell you to buy it. The drug is almost always available in the pharmacy chain; if there is no drug available, you can place an order and get the solution in 1-2 days. The drug is prescribed to men in the hypogonadism treatment scheme. Most patients receive injections of the oil solution once every 12 weeks.

Testosterone undecanoate. Characteristics of the substance

Testosterone undecanoate - an ester of natural male hormone. By splitting the side chain, the active substance is converted to testosterone. In the human body, it is synthesized by the testicles and adrenals. The hormone has a complex effect on the organism. It stimulates sexual development, delays calcium and strengthens the bones, and affects the emotional state.

Testosterone undecanoate is prescribed in medical practice to treat male hormone deficiency and underdevelopment of gonads. The drug affects the sensitive organs of the reproductive system. In sport, a pharmacological remedy is used as an anabolic that stimulates muscle growth, reduces fat deposits on the body and strengthens bone tissue. Testosterone affects the mood - at a moderate dose it gives you energy and confidence. Testosterone undecanoate can be purchased in the form of an oil solution for intramuscular injection at the Atlet-store internet shop. The active ingredient is slowly absorbed into the bloodstream after injection and then broken down into undecanic acid and testosterone.

The maximum concentration of testosterone is observed on the 7-14th day after 1000 mg Testosterone undecanoate is injected. The half-life period is up to 25 days. The biochemical conversion of Testosterone undecanoate takes place mainly in the liver and also outside of it. The drug is excreted through the kidneys with urine and intestines with feces masses.

Use of the substance in sports

For testosterone undecanoate, the instructions indicate that the drug can be presented as an oil solution and tablet (produced and most commonly used by athletes in the USA). Domestic athletes often choose the injectable form of anabolic.

For athletes, using a pharmacological product makes it possible to increase muscle mass and avoid most of the side effects that other similar products have. Testosterone in the form of undecanoate virtually retains no fluid in the body, so there is no need to be afraid of swelling during the course. The same property makes it possible to use injections during drying to protect muscles from destruction. Experienced athletes know that the drug practically does not slow down the pituitary arch, so they prefer to buy Testosterone undecanate instead of other anabolics. In moderate doses, the drug increases libido and normalises erectile function. Testosterone undecanate is moderately aromatized into estrogens.


Before you buy Testosterone undecanoate, you should check out the list of contraindications. You must not take the pharmacological product at all:

  • malignant tumours of the prostate and mammary gland;
  • increased calcium content in the blood against the background of oncological processes;
  • any liver tumours;
  • hypersensitivity to components in the preparation.

Do not prescribe the injection drug to women. It is prohibited to use anabolic during pregnancy and breastfeeding. Special care must be taken when using anabolic steroid in people with apnoea and other respiratory disorders.

Testosterone undecanoate. Interaction

People taking other medicines at the same time need to undergo an examination and consultation before and after Testosterone undecanoate. Androgen enhances the effect of insulin and tablet sugar reducing agents. Barbiturates increase the activity of testosterone and blood thinners.

Side effects

The use of Testosterone undecanoate must exactly match the recommended dosage. Abuse of the drug, long periods of use may be accompanied by side effects. The most frequent of these are the following:

  • Digestive disorders (diarrhoea, nausea and vomiting);
  • muscle and joint pain in the legs;
  • hyperhidrosis;
  • dizziness and headaches.
Nome del prodotto Prezzo
Testosteronе U (Testosteron undecanoate) 250 mg Balkan Pharmaceuticals 33 €
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