Sustanon
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Sustanon is a trade name owned by Organon Pharmaceuticals for oil-based injectable blends of esterized testosterone compounds.
Sustanon 250 is a blend of four esterized testosterone compounds:
- 30 mg testosterone propionate
- 60 mg testosterone phenylpropionate
- 60 mg testosterone isocaproate
- 100 mg testosterone decanoate
Sustanon 100 was similar, though with three esters. This smaller dose was usually for pediatric use.
- 20 mg testosterone propionate
- 40 mg testosterone phenylpropionate
- 40 mg testosterone isocaproate
Sustanon 100 has not been produced since 2009.[1]
The numbers in the names refer to the fact that the content of testosterone compounds in each blend are 250 and 100 mg/ml, respectively.[2]
The different testosterone esters provide for different half lives. Esterization of the testosterone molecules provides for a sustained (but non-linear) release of testosterone from the injection depot into the blood plasma.
While the intention of the mixed testosterone esters in Sustanon is to provide more stable serum testosterone levels, a single long-ester testosterone, such as testosterone cypionate or testosterone enanthate, may actually provide more stable serum testosterone levels.[medical citation needed]
Sustanon is the preferred method of testosterone replacement in the UK as detailed in the British National Formulary.[citation needed] There was a brief shortage of Sustanon 250 during late 2011, due to licensing problems[3] and a further shortage in mid-2012 due to manufacturing problems.[medical citation needed]
This form of testosterone is a popular choice of anabolic steroid among bodybuilders and athletes.[medical citation needed]
See also[edit]
References[edit]
- ^ "Discontinuation of Sustanon 100 (testosterone replacement therapy)". NeLM. Archived from the original on 29 September 2009. Retrieved 9 August 2016.
- ^ Johnson, William (19 January 2016). "Sustanon". Roids.co. Retrieved 9 August 2016.
- ^ http://www.oxfordshirepct.nhs.uk/professional-resources/prescribing/prescribing-points/documents/PrescribingPointsJuly11Vol206.pdf[dead link]
