Steroid Half Lives
Steroid Half lives - anyone new to steroids may be wondering what this means,
even some steroid users may also be wondering what this means. So here in simple
terms you can read and hopefully understand all about steroid half lives and
what this term means.
How to calculate half lives
Basically every drug has a half live, steroids included. If for example, you
were to inject 200mg of Decadurabolin once weekly, for 6 weeks, how would you
know when you were "off"? Would you be "off" when you had
finished your last dose? You would be able to calculate this from the half live
of Deca. The half live of Deca is around 14 days. This means that 14 days from
your last shot of 200mg of Deca, your blood levels of Deca will contain
100mg of the steroid. Another 14 days from then, i.e. 28 days from last dose,
your blood levels will contain 50mg of the steroid. This amount then keeps halving
every 14 days. Therefore you can clearly see that when you finish your cycle,
even though you are not putting any steroids into your body, you may think that
you are now "off", however you still have, and will still have for
some time after your last dose, "active" blood levels of the steroid.
Therefore you can plan what to use, how long for, and how long off your cycle,
based on these half live's.
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While we don't condone the use of steroids, we do try to put the best information out there for those individuals who have made the choice to use steroids as part of their bodybuilding regime. Please be aware there are a many number of negative side effects caused by using steriods. One of our most frequely asked questions is how to minimise hair loss. Steroids can cause an increase in DHT; this is the main hormone respomsible for thinning hair and causing hair loss. There are pharmaceutical treatments available that block DHT, such as proscar. One of our top picks for thinning hair is to use some of the best hair thickening shampoo for men or some of the best shampoo for thinning hair.
Below a list of half-live's of the most commonly used steroids, esters and ancillary compounds.
Oral steroids Drug Active half-live
Anadrol / Anapolan50 (oxymetholone) 8 to 9 hours
Anavar (oxandrolone) 9 hours
Dianabol (methandrostenolone, methandienone) 4.5 to 6 hours
Methyltestosterone 4 days
Winstrol (stanozolol)
(tablets or depot taken orally) 9 hours
Depot steroids Drug Active half-live
Deca-durabolin (Nandrolone decanate) 14 days
Equipoise 14 days
Finaject (trenbolone acetate) 3 days
Primobolan (methenolone enanthate) 10.5 days
Sustanon or Omnadren 15 to 18 days
Testosterone Cypionate 12 days
Testosterone Enanthate 10.5 days
Testosterone Propionate 4.5 days
Testosterone Suspension 1 day
Winstrol (stanozolol) 1 day
Steroid esters Drug Active half-live
Formate 1.5 days
Acetate 3 days
Propionate 2 days
Phenylpropionate 4.5 days
Butyrate 6 days
Valerate 7.5 days
Hexanoate 9 days
Caproate 9 days
Isocaproate 9 days
Heptanoate 10.5 days
Enanthate 10.5 days
Octanoate 12 days
Cypionate 12 days
Nonanoate 13.5 days
Decanoate 15 days
Undecanoate 16.5 days
Ancillaries Drug Active half-live
Arimidex 3 days
Clenbuterol 1.5 days
Clomid 5 days
Cytadren 6 hours
Ephedrine 6 hours
T3 10 hours