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HotLava808

Anabolic Steroids and Ancillaries Half Life Chart

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HotLava808

Below is a list of half-life's of the most commonly used steroids, esters and ancillaries. These are only guidelines.

Oral steroids half-life 

Anadrol (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 active half-life 

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 active half-life 

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 half-life

Arimidex 3 days 
Clenbuterol 1.5 days 
Clomid 5 days 
Cytadren 6 hours 
Ephedrine 6 hours 
T3 10 hours 

 

Edited by HotLava808
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“The person who says it cannot be done should not interrupt the person doing it”

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XlKiwi
Below is a list of half-life's of the most commonly used steroids, esters and ancillaries. These are only guidelines.

Oral steroids half-life 
Anadrol (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 active half-life 
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 active half-life 
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 half-life
Arimidex 3 days 
Clenbuterol 1.5 days 
Clomid 5 days 
Cytadren 6 hours 
Ephedrine 6 hours 
T3 10 hours 
 
Awesome!

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Jdanima

Hi...would you please clarify the listing in terms of acetate and propionate? From my Organic Chemistry, the acetate is one carbon less then the propionate form thus metabolized faster. 

Thanks for the list!

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HotLava808
2 hours ago, Jdanima said:

Hi...would you please clarify the listing in terms of acetate and propionate? From my Organic Chemistry, the acetate is one carbon less then the propionate form thus metabolized faster. 

Thanks for the list!

You are correct. This list is a guideline but your understanding is correct. Good catch!

It is important to note that the shorter the ester chain the faster the body will metabolize the ester. When speaking in terms of performance/physique enhancement frequent injections of anabolic steroids are important to maintain stable plasma levels. In regards to Acetate/Propionate every other day injections are good but in my experience every day injections are better. The every day injections make the half life difference between the two a mute point and every other day injection make the difference less critical. Its when we extend the time between injection beyond ED or EOD that we may see some instability in serum levels.

Thanks for pointing out the error @Jdanima

Research Scientist W. Llewellyn writes that the half life of prop is 4.5 days and acetate is 3 days but he also mentions that ED injections are optimal in regards to blood serum stability for each of these esters.

Edited by HotLava808

“The person who says it cannot be done should not interrupt the person doing it”

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Jdanima

Thanks HotLava808.....I think it is crucial to understand the molecular biology of the gear we utilize for performance. One more question, is the half-life of Sustanon based on the largest ester concentration contained in the mix or is their a steric hindrance impacting metabolism due to multiple ester forms?

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HotLava808
35 minutes ago, Jdanima said:

One more question, is the half-life of Sustanon based on the largest ester concentration contained in the mix

It is the half life of the Deconoate contained in the blend.

Edited by HotLava808

“The person who says it cannot be done should not interrupt the person doing it”

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HotLava808
35 minutes ago, Jdanima said:

is their a steric hindrance impacting metabolism due to multiple ester forms?

I have no idea. That is beyond my knowledge or education.

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“The person who says it cannot be done should not interrupt the person doing it”

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paul585

Useful info! Thanks.

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yousefprice

Not bad

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Brown

Great Read!

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