Steroid Half-Life

Steroid Half-Life Chart: Understanding Anabolic Steroid Duration



When the term "half-life" is mentioned, one might envision mutants or monsters. However, let's face the reality – if you're shopping for anabolic steroids at, it's likely because you want to unleash your inner beast!



Jokes aside, the half-life of a compound is a crucial factor to consider when planning your anabolic steroid regimen. For instance, injecting Trenbolone Acetate once a week would be ineffective, while injecting Equipoise every other day would be excessive.



The injection schedule is a vital consideration when designing a steroid cycle, and the chart below can serve as a helpful tool.




Oral steroids:


DrugActive half-life
Anadrol (oxymetholone)8 to 9 hours
Anavar (oxandrolone)9 hours
Dianabol (methandrostenolone, methandienone)4.5 to 6 hours
Methyltestosterone4 days
Winstrol (stanozolol)9 hours
Halotestin (Fluoxymesterone)9.5 hours
Turinabol (Tbol)16 hours


Injectable steroids:


DrugActive half-life
Deca-durabolin (Nandrolone decanate)15 days
Equipoise14 days
Trenbolone Acetate3 days
Primobolan (methenolone enanthate)10.5 days
Sustanon or Omnadren15 to 18 days
Testosterone Cypionate12 days
Testosterone Enanthate10.5 days
Testosterone Propionate4.5 days
Testosterone Suspension1 day
Winstrol (stanozolol)1 day


Steroid esters:


DrugActive half-life
Formate1.5 days
Acetate3 days
Propionate4.5 days
Phenylpropionate4.5 days
Butyrate6 days
Valerate7.5 days
Hexanoate9 days
Caproate9 days
Isocaproate9 days
Heptanoate10.5 days
Enanthate10.5 days
Octanoate12 days
Cypionate12 days
Nonanoate13.5 days
Decanoate15 days
Undecanoate16.5 days




DrugActive half-life
Arimidex3 days
Clenbuterol1.5 days
Clomid5 days
Cytadren6 hours
Ephedrine6 hours
T310 hours
Letrozole5 hours
Nolvadex (Tamoxifen Citrate)14 days


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