Almost all of the common forms of testosterone on the pharmaceutical market are available in the form of injectable oil solutions. The fact is that unchanged molecules of this hormone when absorbed from the digestive tract in the liver are inevitably destroyed by special enzymes. Therefore, in order to produce a stable form of testosterone in tablets, the molecule had to be modified in such a way that it is well absorbed in the intestine (which easily penetrates through the mucous membranes) and at the same time is not destroyed by the liver. The first testosterone tablets – methyltestosterone (trade names – Androral, Metandren, Testoral etc.) – were developed in the middle of the last century to treat breast cancer in women. However, the drug has not spread to bodybuilding or medicine due to serious liver side effects.
Testosterone-based drugs are often used in sports pharmacology. They can be attributed to the classic steroids chosen by all the professionals. To this day, it is actively used in bodybuilding, weightlifting. Experienced athletes advise buying Testosterone Undecanoate ZPHC bottles Testosterone Undecanoate 10 ml (1 ml / 250 mg) in Almaty at an affordable price.
Pharmacokinetics: absorption and elimination after administration
In the early 1980s, another drug in tablet form (more specifically, encapsulated) was developed. Testosterone Undecanoate (Testosterone Undecanoate) is also sold by injection under the Nebido brand . This form is also known under the trade names Virigen, Andriol and Androxon. Capsules contain 40 mg active ingredient dissolved in oil.
Characteristics of steroids
Testosterone is a classic steroid that many professional athletes have gone through to improve their body. It is produced in the male and female body, but in different concentrations. It is a male sex hormone important for the development of the body. In sports, it is used to improve physical performance. It occurs in various etheric forms on which the half-life and action of the steroid depend. You can find testosterone enanthate, propionate, undecanoate, cypionate, phenylpropionate in the sports pharmacology market.
Testosterone undecanoate is an ester-based steroid. Among other esters, this type of hormone is the longest-acting. Their elimination half-life is up to 8 weeks. This allows control of the drug itself very rarely, but at the same time has a lasting effect on physical indicators. The drug based on it is actively used by professional and experienced athletes in bodybuilding, weightlifting and strength training. It shows versatile action, allowing it to replace fat-burning drugs, strengthen and accumulate mass.
Testosterone Undecanoate is manufactured by a trusted manufacturer from China. ZPHC is engaged in the production of quality sports pharmacological products. Known in the international market all over the world. It is available as an injection with a volume of 10 ml (vial). The concentration of the active substance is 250 mg.
Studies have shown that testosterone undecanoate has no toxic effect on the liver when absorbed from the gastrointestinal tract, since it enters the lymph (not the bloodstream). So the system bypasses the liver. Undecanoate is converted in the body to dihydrotestosterone, the active metabolite of testosterone, meaning it is actually a prohormone. Since dihydrotestosterone does not undergo aromatization, it does not increase the level of the female sex hormone estrogen, so gynecomastia develops and fluid does not accumulate in the body. Testosterone tablets (Androxon or Andriol) have also been shown not to significantly inhibit endogenous (testicular) production.
Indications for use
Testosterone tablets are prescribed in the following cases:
- For the treatment of hormone replacement therapy in men due to testosterone deficiency (hypopituitarism, eunuchoidism, infertility associated with limited spermatogenesis, male menopause, endocrine impotence).
- With masculinization in humans a change from female to male;
- With osteoporosis, which develops due to androgen deficiency.
The tablet version of the hormone does not appear to have any serious drawbacks and claims to be the best anabolic, but in fact Testosterone Undecanoate has been shown to be a fairly weak androgenic drug. Athletes who used it during training experienced only a slight increase in muscle mass, even with high doses of the drug. This drug has been found to have a relatively low bioavailability of around 7%. In addition, a testosterone undecanoate cycle was found to cause a significant increase in libido and frequent (at the time of ingestion) erections. A few days after the course, like other androgen steroids, these indicators decrease due to the suppression of endogenous secretion of male sex hormones.
Testosterone pills need to be combined with a steroid like Nandrolone to get good muscle gain. The combination of testosterone undecanoate + nandrolone is relatively effective and has few side effects. In general, this drug is not the preferred choice in bodybuilding to gain muscle mass or definition, nor is it the preferred choice in triathlons to increase muscle strength.
Testosterone Undecanoate is an ester-based steroid. Of the other esters, this type of hormone works the longest. The half-life lasts up to 8 weeks. This allows the drug itself to be administered extremely rarely, but at the same time has a permanent effect on physical indicators. Drugs based on it are actively used by professional and experienced athletes in bodybuilding, weightlifting and weightlifting. It exhibits a variety of actions that can replace fat-burning, fortifying and mass-gathering drugs.
Testosterone Undecanoate is made by a reliable Chinese manufacturer. ZPHC is engaged in the production of high-quality sports pharmacology products. It is known in the international market all over the world. The drug is available in the form of injections in a dose of 10 ml (bottle). The concentration of the active substance is 250 mg.