Chemical Formula: C22H32O3 Description Testosterone propionate is a slower releasing anabolic steroid with a short half-life. This characteristic allows the user to run short testosterone propionate cycles of 8-10 weeks as optimal peak blood plasma levels are achieved at 2-4 weeks. It is a synthetic androstane steroid derivative of testosterone in the form of 17β propionate ester of testosterone. Testosterone propionate was developed initially by Watson labs, and FDA approved on February 5, 1974. Currently, this drug has been discontinued in humans, but the vet application is still available as an OTC. Mechanism of action The effects of testosterone in humans and other vertebrates occur by way of two main mechanisms: by activation of the androgen receptor (directly or as DHT), and by conversion to estradiol and activation of certain estrogen receptors. Free testosterone (T) is transported into the cytoplasm of target tissue cells, where it can bind to the androgen receptor, or can be reduced to 5alpha-dihydrotestosterone (DHT) by the cytoplasmic enzyme 5alpha-reductase. The areas of binding are called hormone response elements (HREs), and influence transcriptional activity of certain genes, producing the androgen effects Types of side effects: All side effects of testosterone propionate occur due to exceeding the recommended doses or personal intolerance to the drug. For any pharmacology, it is important to have a responsible approach. After all, the appearance of side effects often indicates the presence of violations in the body. Side effects
Appearance of acne on the body;
Aggression & irritability;
Loss of hair on the head;
Redness & pain at injection site;
Appearance of hair on the back.
The side effects we listed above will vary from person to person. Doses of Test Prop like any other steroid will affect each user differently. Side effects that are felt by one man many not be felt by another. Key factors such as age, level of fitness/activity, overall health, diet and training will play a role in the risk of such side effects.