Testosterone Propionate has a specific androgen effect: stimulates the development and function of the external genitals, prostate, seed bubbles, as well as secondary sexual signs in men (voice, hair cover). Participates in the formation of body constitution and sexual behavior in men, enhances libido and potency, stimulates spermatogenesis. Reduces the production of LG and FSH. Testosterone is an antagonist of female sex hormones – estrogens, has anti-tumor action in breast tumors in women. It has an anabolic effect, which is manifested by stimulation of protein synthesis, reduction of fat deposition, delay in the body of potassium, phosphorus, sulphur necessary for protein synthesis, enhancement of calcium fixation in bones and increase of muscle mass. With sufficient protein nutrition stimulates erythropoietin production.
Testosterone Propionate circulating in the blood enters the target organs, where it is reduced to 5-α-dihydrotestosterone, which interacts with cell membrane receptors and penetrates the cell nucleus. Up to 98% of the drug in blood plasma binds to proteins, mostly globulins. It is metabolized in the liver to low-active and inactive metabolites that are excreted from the body with urine. Approximately 6% of the preparation is excreted with feces in an unchanged state.