GenezaMeds.com

GenezaMeds.com

Monday, December 15, 2014

Steroid Half-Lives

Because there are different anabolic steroid half-lives for the different anabolic steroids in existence, not every anabolic steroid can be administered in the same manner or in the same frequency. Dianabol (Methandrostenolone), for example, exhibits a half-life of approximately 4 – 6 hours, which might require multiple daily administrations in order to maintain stable blood levels of the hormone. The same might not be said for Winstrol (Stanozolol), which expresses a half-life of 9 hours in the body, and therefore individuals could easily get by with ingesting their full dose all at once.

It is important to understand as well that for the purpose of performance and physique enhancement, frequent administration of anabolic steroid is very necessary in order to maintain stable and optimal blood plasma levels. For therapeutic medical use, the administration of an anabolic steroid on the last day of its half-life might be acceptable, but for the purpose of performance and physique enhancement, the administration and dosage protocol changes dramatically. The intention at this point is no longer for therapeutic use, but now for increased performance and/or muscle mass and strength. Therefore, higher than normal (therapeutic) physiological bodybuilding doses are required, as well as a higher frequency of injections are required so as to maintain optimal peak blood plasma levels of the hormone. For example, a TRT (Testosterone Replacement Therapy) does not have to be concerned about performance increases from week to week (or even day to day), but athletes and bodybuilders must.

The following is a list of anabolic steroid half-lives (in alphabetical order):

Anadrol (Oxymetholone): 8 – 9 hours
Anavar (Oxandrolone): 9 hours
Deca-Durabolin (Nandrolone Decanoate): 15 days
Dianabol (Methandrostenolone): 4.5 – 6 hours
Equipoise (Boldenone Undecylenate): 14 days
Halotestin (Fluoxymesterone): 9.5 hours
Masteron (Drostanolone Propionate): 4.5 days
Nandrolone Phenylpropionate: 4.5 days
Omnadren: 15 – 18 days (variable due to the mixture of four different ester types)
Parabolan (Trenbolone Hexahydrobenzylcarbonate): 14 days
Primobolan, oral (Methenolone Acetate): 2 – 3 days
Primobolan, injectable (Methenolone Enanthate): 7 – 10 days
Sustanon 250: 15 – 18 days (variable due to the mixture of four different ester types)
Testosterone Cypionate: 10 – 12 days
Testosterone Enanthate: 7 – 10 days
Testosterone Propionate: 4.5 days
Testosterone Suspension: 2 – 4 hours (some reports as long as 39 hours)
Trenbolone Acetate: 3 days
Turinabol (4-chlorodehydromethyltestosterone): 16 hours
Winstrol, oral (Stanozolol): 9 hours
Winstrol, injectable (Stanozolol): 24 hours

A final concluding note should be made on anabolic steroid half-lives, and this goes for any drugs, chemicals, or foods: half-lives are not set in stone figures, and only approximations and ranges can be given. Half-lives are also very susceptible to the individual metabolism of the person using the drugs, as some individuals may possess a faster ability to metabolize hormones than others, while others can be much slower at this process. For example, while the half-life of Testosterone Enanthate is that of 7 – 10 days, there might be some individuals that might metabolize the drug within 5 days, and others that might metabolize it within 12 days or more.

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