Molecular Formula: C27H40O3
Molecular Weight: 412.61
Description: white or off-white crystalline powder
Usage: Testosterone Cypionate is a synthetic androgen, mainly used for treatment of testosterone or class clinically free of testosterone syndrome, cryptorchidism, dysfunctional uterine bleeding, menorrhagia, ectopic endometriosis, uterine fibroid, menopause syndrome, metastatic breast cancer, and ovarian cancer, pituitary dwarfism, senile osteoporosis, such as aplastic anemia.
American athletes have a long and fond relationship with Testosterone cypionate. While Testosterone enanthate is manufactured widely throughout the world, cypionate seems to be almost exclusively an American item. It is therefore not surprising that American athletes particularly favor this testosterone ester.
But many claim this is not just a matter of simple pride, often swearing cypionate to be a superior product, providing a bit more of a "kick" than enanthate. At the same time it is said to produce a slightly higher level of water retention, but not enough for it to be easily discerned.
Of course when we look at the situation objectively, we see these two steroids are really interchangeable, and cypionate is not at all superior. Both are long acting oil-based injectables, which will keep testosterone levels sufficiently elevated for approximately two weeks. Enanthate may be slightly better in terms of testosterone release, as this ester is one carbon atom lighter than cypionate (remember the ester is calculated in the steroids total milligram weight). The difference is so insignificant however that no one can rightly claim it to be noticeable (we are maybe talking a few milligrams per shot). Regardless, cypionate came to be the most popular testosterone ester on the U.S. black market for a very long time
As with all testosterone injectables, one can expect a considerable gain in muscle mass and strength during a cycle. Since testosterone readliy converts to estrogen, the mass gained from this drug is likely to be accompanied by quite a bit of water retention. The resulting loss of definition of course makes cypionate a very poor choice for dieting or cutting phases.
The excess level of estrogen brought about by this drug can also cause one to develop gynecomastia rather quickly. Should one notice an uncomfortable soreness, swelling or lump under the nipple, an ancillary drug like Nolvadex should be added immediately. This will minimize the effect of estrogen greatly, making the steroid much more tolerable to use.
The powerful anti-aromatases Arimidex, Femara, or Aromasin are yet a better choice. Those who have a known sensitivity to estrogen may find it more beneficial to use ancillary drugs like Nolvadex and Proviron from the onset of the cycle, in order to prevent estrogen related side effects before they become apparent.
This is especially true whenever we are withdrawing a strong (aromatizing) androgen like testosterone, as a considerable drop in weight (and strength) is to be expected as retained water is excreted. This should not be of much concern; instead the user should focus on ancillary drug therapy so as to preserve the solid mass underneath.
Another way athletes have found to lessen the "crash", is to first replace the testosterone with a milder anabolic like Deca-Durabolin. This steroid is administered alone, at a typical dosage (200-400mg per week), for the following month or two. In this "stepping down" procedure the user is attempting to turn the watery bulk of a strong testosterone into the more solid muscularity we see with nandrolone preparations.
In many instances this practice proves to be very effective. Of course we must remember to still administer ancillary drugs at the conclusion, as endogenous testosterone production will not be rebounding during the Deca therapy.