Also, here's a fairly comprehensive list of esters and their associated weights.
Oral Drug Active half-life
Anadrol /Anapolan50 (Oxymetholone) 8 to 9 hours
Anavar (Oxandrolone ) 9 hours
Dianabol (Methandrostenolone , Methandienone) 4.5 to 6 hours
Winstrol (stanozolol ) (tablets or depot taken orally) 9 hours
*Turinabol (T-Bol) 7 hours ORAL
*16 Hours IV
http://www.ncbi.nlm.nih.gov/pubmed/1...?dopt=Abstract
Depot Drug Active half-life
Deca -durabolin (Nandrolone decanate) 10.5 days
Equipoise 8 days
Finaject (Trenbolone acetate) 1.5 days
Primobolan (Methenolone enanthate ) 5-7 days
Sustanon or Omnadren 9 days
Testosterone Cypionate 7-9 days
Testosterone Enanthate 5-7 days
Testosterone Propionate 2 days
Testosterone Suspension Less than 1 day
Masteron (Drostanolone Propionate ) 2 days
Masteron Enanthate 8 days
Winstrol (Stanozolol ) 1 day
*Human Chorionic Gonadotropin (hCG ) 23hr terminal half life but peak concentrations can remain for 36hrs.
Active Ester
Formate 1.5 days
Acetate 3 days
Propionate 3 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 14 days
Octanoate 12 days
Cypionate 18 days
Nonanoate 13.5 days
Decanoate 21 days
Undecanoate 16.5 days
Esters Weights - Actual mg/100mg dose
Test Base 100
Tren Acetate 87
Test Prop 83
Test Enanth 72
Test Cyp 70
Test Undecan 63
Nand Phenyl 67
Nand Deca 64
Ancillaries Drug Active half-life
Aromasin (Exemestane) 10 hours
Arimidex 3 days
Clenbuterol 1.5 days
Clomid 5 days
Cytadren 6 hours
T3 2.5 days
Active Life versus Half Life
The confusion comes from the 2 terms being used synonymously when they should not be. Half-life is not a reference for the total time a drug will be found active in the body. It may take several half-lives before the drug is completely inactive.
Half-life: The period of time required for the concentration or amount of drug in the body to be reduced to exactly one-half of a given concentration or amount.
Example: The half-life of Anavar is 9 hours+/- (9 hours after oral administration of 50 mg of Anavar, 25mg is still present in the body).
Active life: Refers to the period in which the amount of a drug in the body is enough that it will still produce the desired effects for which it was administered. Or conversely, inhibit natural recovery of normal bodily function. It is dose dependent.
Example: The active life of 1,000mg of testosterone decanoate would be more than one month. At day 30 after injection, 250mg or more of this drug would still be present in the body.
