Flutamide and 2-hydroxyflutamide have been found in vitro to inhibit CYP17A1 (17α-hydroxylase/17,20-lyase), an enzyme which is required for the biosynthesis of androgens.  In accordance, flutamide has been found to slightly but significantly lower androgen levels in GnRH analogue-treated male prostate cancer patients  and women with polycystic ovary syndrome .  As such, flutamide is a weak inhibitor of androgen biosynthesis.  However, the clinical significance of this action may be limited when flutamide is given without a GnRH analogue to non-castrated men, as the drug markedly elevates testosterone levels into the high normal male range via prevention of AR activation-mediated negative feedback on the hypothalamic–pituitary–gonadal axis in this context. 
A typical medical dosage associated with Turanaxyl is actually believed to become 1 to 5 mg daily; real recommending recommendations tend to be not available. Within the sports industry, ladies might generally have a solitary 5 mg pill daily, drawn in series enduring a maximum of 4-6 days to reduce hepatotoxicity. Virilizing results tend to be not likely only at that degree of make use of. Higher dosages had been frequently combined with woman sports athletes within the previous GDR doping plan, however frequently in order to detriment associated with powerful virilizing unwanted effects.
Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.