Testosterone undecanoate Powder by Genesis, is the company’s answer to first 3-monthly injectable testosterone preparation for the treatment of male hypogonadism,Nebido. It offers long-lasting testosterone levels in the eugonadal range. It reliably and significantly improves all symptoms associated with hypogonadism.   With Testosterone undecanoate testosterone levels remain constantly – for up to 14 weeks – in the eugonadal range, avoiding unphysiological peaks and troughs. Patients value the consistent, reliable efficacy and the long duration of effect, which mean they are not dependent on taking frequent medication. Consequently, Testosterone undecanoate is believed to become the standard preparation for long-term treatment.   It is injected deeply into the gluteal muscle. Following administration, testosterone undecanoate is gradually released from the depot and is cleaved by serum esterases into testosterone and undecanoic acid. An increase of serum testosterone concentrations above basal values can already be measured the very next day after injection.   Testosterone undecanoate comes in two 4 ml ampules per box. The 4ml contains 1,000mg (250mg per ml) of testosterone undecanoate, equivalent to 6315 mg testosterone.