A lot of bodybuilders use testosterone propionate during the off season. The drug stays in the body for a long time and it is advisable not to use it during the active sports season. The drug definitely has anabolic and androgenic properties. However, the effects of the drug are not immediate and may take at least 3-4 weeks to become evident. Many bodybuilders also use other anabolic hormones like GH/thyroxin in combination. Because testosterone is also converted to estrogen in the fatty tissues, many bodybuilders develop breast enlargement and retain water. The dose used to increase muscle mass and strength is about 25- 400 mg/week. However, at the higher doses the drug has potent side effects and it is highly recommended that all beginners start off with the low dose.
The increase in protein mass is gradual but does occur. Because the steroid also stimulates red blood cell production, many bodybuilders also notice that they have an increased capacity to perform under intense exercise conditions.
Testosterone propionate is preferred by most bodybuilders but it is not readily available. The drug has been claimed to promote good health, increase exercise performance and leads to a positive nitrogen balance. There are reports that it also selectively decreases fat and increases muscle mass. Sometimes the water retention can be quite dramatic and some individuals do take a diuretic pill to remove it.
To prevent the breast enlargement, testosterone propionate is cycled with drugs like Arimidex or Tamoxifen. Most individuals take the testosterone for 4-6 weeks and then stop for a few weeks. During this wash out phase, one may use Arimidex.