Originally Posted by BASK8KACE
Monster,
What you've written above is not quite correct:
I've spent a lot of time on the phone with the UPJOHN nurse and pharmacy staff talking to them about testosterone cypionate (Depo-Testosterone), so what I'm saying about testosterone is not guesswork or hearsay, it is fact. NOTE: Upjohn is the manufacturer of Depo-Testosterone (brand name of cypionate). Upjohn has a customer nursing and pharmacy staff to answer technical medical questions about their products.
NOTE: Everything here also applies to enanthate.
The testosterone from one shot of cypionate can stay active in the body for AT LEAST two weeks, this is why some doctors will prescribe 200mg shots every other week for hormone replacement therapy. The information insert that comes with the Depo-Testosterone indicates the following for Dosage and Administration: "For replacement in the hypnogonadal male, 50mg - 400mg [of cypionate] should be admnistered every two to four weeks." As I've mentioned in other posts, doctors who have taken time to learn a lot about HRT usually prescribe 100-200mg every 1-2 weeks to keep the testosterone leves relatively constant.
The "half-life" of tesosterone is far more than 36-48 hours. This idea of the half life being so short probably comes from people guessing that since they experience the greatest effects of a shot approximately 6 days after a shot, then the half life must be 36-48 hours. Here's the real deal: According to the nurses, testosteron cypionate will be at it's maximum concentration in the male body 6 days after the shot, after that it slowly tapers off. Just like everything in life, the way cyp enters and leaves the body cannot be represented by a perfect (symmetrical) curve. In other words, just because it takes 6 days for maximum concentrations to be reached, does not mean that it will leave your body in exactly 6 days after maximum concentration.
If a person is planning on doing 500 mg of testosterone per week, then (if you do the math) taking 250mg of cyp every 4th day is the equivalent of taking 500 mg every 7 days. Because cyp is a long lasting ester, there is not going to be a huge difference in your hormone levels if you take a 250mg shot every Monday/Thursday rather than every 4 days.