Pharmacodynamics<unk>  is a prodrug of testosterone and is an androgen and anabolic–androgenic steroid (AAS). That is, it is an agonist of the androgen receptor (AR). Pharmacokinetics<unk>  has a very long elimination half-life and mean residence time when given as a depot intramuscular injection. Its elimination half-life is 20.9 days and its mean residence time is 34.9 days in tea seed oil, while its elimination half-life is 33.9 days and its mean residence time is 36.0 days in castor oil. These values are substantially longer than those of testosterone enanthate (which, in castor oil, has values of 4.5 days and 8.5 days, respectively).<unk>  is administered via intramuscular injection once every three months or so.
Testosterone undecanoate
Testosterone decanoate
Testosterone acetate
Testosterone furoate
Testosterone propionate
Testosterone enanthate
Testosterone undecylenate
Testosterone valerate