Testosterone undecanoate, sold under the brand names Nebido, Aveed, and Andriol among others, is an androgen and anabolic steroid (AAS) medication which is used mainly in the treatment of low testosterone levels in men. It is also used in hormone therapy for transgender men. It is taken by mouth two to three times per day with food or given by injection into muscle once every 12 weeks or so.
Side effects of testosterone undecanoate include symptoms of masculinization like acne, increased hair growth, voice changes, and increased sexual desire. The drug is a synthetic androgen and anabolic steroid and hence is an agonist of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT). It has strong androgenic effects and moderate anabolic effects, which make it useful for producing masculinization and suitable for androgen replacement therapy. Testosterone undecanoate is a testosterone ester and a prodrug of testosterone in the body. Because of this, it is considered to be a natural and bioidentical form of testosterone.
Testosterone undecanoate was introduced in China for use by injection and in Europe for use by mouth in the 1970s. It became available for use by injection in Europe in the early to mid 2000s and in the United States in 2014. A formulation for use by mouth is not currently available in the United States but is pending approval as of 2018. Along with testosterone enanthate, testosterone cypionate, and testosterone propionate, testosterone undecanoate is one of the most widely used testosterone esters. However, it has advantages over other testosterone esters in that it can be taken by mouth and in that it has a far longer duration when given by injection. In addition to its medical use, testosterone undecanoate is used to improve physique and performance. The drug is a controlled substance in many countries and so non-medical use is generally illicit.
HELIX PHARMA TESTOSTERONE UNDECANOATE 250MG/ML X 10ML
- Product Code: HELIX PHARMA TESTOSTERONE UNDECANOATE 250MG/ML X 10ML
- Availability: In Stock