Fusion Testosterone Cypionate is a modified form of testosterone, where a carboxylic acid ester (cyclopentylproprionic acid) has been attached to the 17-beta hydroxyl group. Esterfied forms of testosterone are less polar free testosterone, and are absorbed more slowly from the area of injection. Once in the bloodstream, the ester is removed to yield free (active) testosterone. Esterified forms of testosterone are designed to prolong the window of therapeutic effect following administration, allowing for a less frequent injection schedule compared to injections of free (unesterified) steroid. The half-life of testosterone cypionate is approximately 8 days after injection.
Testosterone cypionate is highly favored by athletes to promote strong increases in muscle mass and strength. It is usually incorporated into bulking phases of training, when added water retention will be of little consequence, users are generally more concerned with raw mass then definition. Some do incorporate it into cutting cycles as well, but typically in lower doses and usually accompanied by an aromatase inhibitor to keep estrogen levels under control. Testosterone cypionate is effective on its own but many do stack it with other anabolic/androgenic steroids for a stronger effect.
The body normally makes sex hormones like testosterone which is responsible for the normal growth and development of the secondary sexual features. This includes growth of the prostate, testes, penis, scrotum, body hair, vocal cord thickening, alterations in body fat and musculature. When testosterone deficiency occurs, the secondary sexual characteristics and body growth is always abnormal. Thus, one of the indications of testosterone therapy is in the treatment of individuals who lack testosterone or are infertile.
Testosterone Cypionate is used to treat conditions in made where there is a failure of testosterone to be secreted like:
primary failure of the testes to make the hormone
failure of the pituitary to release Gonadotropins
In clinical medicine, Testosterone Cypionate is administered as an injection. The oily suspension is injected only into the muscles. Testosterone Cypionate is available in two strengths 100mg/ml and 200 mg/ml. It is only made for intramuscular injection. The drug can be injected into the buttock area once every 7-12 days. The majority of the Testosterone Cypionate is bound to protein and only 2% is free. The drug is supposed to be injected once a week, but there are some bodybuilders who do inject it every other day. This is not recommended and can lead to the formation of abscess, sores and skin infections.
The injection site needs to be rotated if the injections are to be continued for a long time. The oily suspension should not be injected into the arms or the abdomen. The dose of Testosterone Cypionate ranges from 50mg-400mg/week, depending on the condition being treated. Bodybuilders tend to inject the higher amount of the drug- 200mg-400mg/week. The drug is then slowly absorbed into the blood stream over the next few days.
Testosterone and its analogues are widely used by athletes and bodybuilders. The steroid is taken principally to enhance the body and stimulate the psyche. Most bodybuilders who take this drug claim that it causes spontaneous bursts in energy associated with increased aggression. This feature of the drug is used primarily by weight lifters and professional wrestlers. Many athletes also claim that the drug improves their ability to perform exercise at intense levels.
Testosterone has moderate anabolic properties but also is a powerful androgenic agent.
Because the drug is given by an injection, its effects on the body are not rapid. One may not see any effects for at least 3-4 weeks after starting the injections. Unlike the oral testosterone, the injected formulations last a longer in the body.
When taken for more than 4-6 weeks, it can increase body mass and protein anabolism. However, for the body to build muscle one also has to eat a diet rich in calories. Most bodybuilders also take a combination of other hormones at the same time. Because testosterone is converted to estrogen in the fatty tissues, there is always the chance of developing gynecomastia and water retention. To prevent this, most bodybuilders add Arimidex or tamoxifen during the off cycle.
During testosterone injections, the natural body testosterone release is inhibited by feedback mechanism through inhibition of pituitary LH. At large doses, even spermatogenesis can be impaired. To allow for the hypothalamic-pituitary axis to recover, it is highly recommended that the drug be tapered off slowly over a period of a few weeks. Sudden discontinuation of the drug can lead to extreme fatigue, weight loss and susceptibility to fractures.
When Testosterone Cypionate is injected at low doses, the side effects are rare. However, long term use is known to be associated with a varied number of side effects – all of which are reversible when the drug is stopped. For the female who decides to take testosterone, there are virilizing side effects which are not always reversible when the drug is stopped. Like all anabolic steroids, testosterone also has a number of side effects which includes:
abdominal cramps, diarrhea
ncreased /decreased libido
acne, oily skin
mental change including anger, depression, insomnia
loss of hair
Testosterone Cypionate is converted into estrogen in the fatty tissues. The estrogen than leads to development of breast enlargement and water retention. This effect is typically seen after the steroid has been used for more than 4 weeks. The gynecomastia does reverse when the steroid is discontinued.
Over dose with Testosterone Cypionate is very rare. The drug is usually administered as an injection. If excess dose is injected, there are no acute side effects but the individual may feel sick for a few weeks. Depending on the dose injected, a visit to the hospital or a physician’s office would not be a bad idea.
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