Name Testosterone Propionate
Pharmaceutical Name:
Testosterone (as Propionate)
Chemical structure: 4-androstene-3-one,17beta-ol
Molecular weight of base: 288.429
Molecular weight of ester: 74.0792 (propionic acid, 3
carbons)
CAS Number: 57-85-2
Testosterone propionate is similar to
enanthate,
cypionate,
and sustanon.
However, compared to enanthate or cypionate, propionate is a much
shorter ester and will release more quickly into the bloodstream. As
a result of its short action, more frequent (daily) injections are
required to prevent steroid blood levels from tapering down and
becoming ineffective. An injection schedule of every third day is
about the longest you would want to perform using propionate to
achieve good results. For best results - daily injections are more
suitable given the nature of this agent. Peak propionate levels take
place after 24-36 hours and taper down from there. As a result of
the frequency of injections required of propionate, it is not a very
attractive steroid for those who are doing their first cycle or
those who do not like intra-muscular injections to begin with. For a
first cycle, a longer acting, single ester testosterone such as
enanthate or cypionate or preferred because in both cases few
injections can be made while maintaining stable blood levels and
thereby optimizing results. Respectively, enanthate should be
injected twice weekly and cypionate once weekly. Since both yield
similar results, the first time user would more likely enjoy either
of those two compounds over propionate. The benefits of propionate
may not be worth the additional energy required for the injections.
Propionate is also a relatively painful steroid to inject with uses
complaining that the same spots become aggravated with additional
injections which require injecting in several different places for
prevention of this pain. The injection site may become irritated and
users have complained of long lasting pain caused by the injections.
For these reasons, propionate is not such a good idea for the first
time steroid user, however, enanthate and cypionate are not without
their share of complications and all factors should be assessed
before beginning with any steroid cycle. If propionate is the
steroid of choice, ancillary drugs such as nolvadex, proviron and
arimidex are advised to have on hand during the cycle in case
symptoms of gyno arise (or if you wish, you can run these drugs
during the cycle for prevention). All testosterones will aromatize,
although some have a lesser chance of it. Propionate may be one of
those drugs, but proper precautions should be taken, nevertheless.
Testosterone propionate has a short active life of 2-3 days. It has
a short half life and is active in the system only a day after
injection. Propionate is one of the componenets of the four
testosterone ester blend
sustanon,
and, along with phenylpropionate, is the reason why more frequent
injections are required with sustanon (to take full advantage of all
esters in the blend). Propionate has the same benefits of every
other testosterone along with the advantage of being fast acting.
Another advantage of propionate when compared to other steroids is
that the level of water retention and water based gains on cycle are
lower when compared to counterparts such as
testosterone
enanthate or
testosterone
cypionate. The benefits of testosterone, such as improved muscle
pumps can be seen very soon after propionate is administered due to
its short half life and related length of activation.
Propionate does have a high rate of aromatization, similar to any
other testosterone, and as a result, ancillary drugs such as
nolvadex
or its weaker counterpart
clomid
should be kept on hand during a cycle where propionate is included
to stop gyno from occurring.
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