What if I told you that there was a form of
Hormone Replacement Therapy (Testosterone Therapy) that would take almost no
time out of your schedule? Well, there is one: testosterone pellets,
the best of class being Testopel.
That may not sounds like a big deal, but the fact is that HRT does generally
involve a significant time commitment. For example, the blockbuster topical
gels, such as Androgel or Testim, require doctor's visits, lab visits (for PSA,
liver function, lipids, etc.), dropping off and picking up of prescriptions,
daily application of gels and daily removal of gels just for starters.
Injections require a trip to the doctor every two to three weeks, lab work and
Now consider this scenario:
You go to the doctor and get an "injection" - it's actually more than an injection which we will cover below - and you are done for roughly three months. That's right - no shots every week and no slathering on gel daily. You do have follow up monitoring to make sure that the pellets are still working, but that's it.
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Plus, pellets deliver a very steady, consistent blood levels of testosterone for months in the sense that there is little day-to-day or week-to-week change. Injections, when done correctly, are weekly but the patient can still end up with fairly large swings (600+ ng/dl in some cases) from the peak to the trough, so the stability of one's T levels is nice. For all these reasons, some argue that testosterone pellets are the most convenient and manageable of the testosterone therapy options with testosterone undecanoate (Nebido) right behind it.
Testosterone Levels on Pellets
Pellets can really give a guy a nice boost depending
on the number of pellets and one's personal physiology. One of our
Peak Testosterone Forum posters stated the following about his testosterone levels
at the 3 months point while
"Came out to 745. Was suprised it was still on the higher end of the scale,
looks like its been dropping 250 +/- per month since the first month high of
1207. I can feel a slight drop off in energy some what, not big, bedroom
activities still good. Told the DR. I felt better at my best about 3-4 weeks
prior, not to say I feel bad now." 
So basically his experience was that he went to a peak of about 1200 ng/dl at
the one month point and then fell by 250 every month thereafter. Now this
is a somewhat typical pattern: basically a slow rise to peak and then a
gradual tapering off. And one problem with the pellets is that the doctor
does not want to put you on pellets usually until he get you down to about 500
ng/dl. I know I did not really feel that great in the 500's - okay but not
great. So that last month can be somewhat of a struggle and 30 days is a
long time for most us.
During the peak though, it is great. That same poster wrote at the two
week point: "--Mental clarity and energy level continue to be noticeable with
brain fog minimized. Morning, midday - evening wood noticeable on most days,
arousal level increased."  I would guess by two weeks, he was in the 800-900
range which is the range when many men start to feel really good.
Testosterone Pellet Side Effects and Issues
So why aren't all guys on HRT using them? Consider these side effects and potential issues:
1. Early Side Effects. The first "generation" of pellets were rife
with ugly side effects and scared many doctors and patients away from their use.
For example, an earlier study of Organon pellets revealed that 8.5% of patients
had extrusions, meaning that one of the pellets actually worked its way up to
the skin surface.  Another study showed even higher extrusion rates in
the 11-12% range.  This same study also documented bleeding and
infection rates of 9% and 4%, respectively. Ouch!
2. Mood Crashes. Pellets are always given by urologists as far as I know
and urologists often do not monitor estradiol. We had one member on the
Peak Testosterone Forum that had a VERY strong
reaction to pellets, which included severe mood disturbances and
depersonalization as he described it. If your testosterone goes over about
900, you more than likely need Arimidex or some other aromatase inhibitor in
order to keep your estradiol from going too high.
And getting the dosage right with Arimidex can be tricky because your
testosterone is slowly ramping up and down. So the dosage that your doc
gives you at peak - assuming he knows to even monitor it - may be too much as
your T levels slide down. This seems to have happened to one of our
posters. He wrote:
"I am coming up on the two month mark and things aren't so good. I feel
EXTREMELY grouchy, pissy irratable, and stressed. My libido is GONE. I am
wondering if I am on too much Arimidex and my E2 has crashed, or if the pellets
have lost their oomph. My follow up usn't until the 27th, but I feel I should go
in NOW. Grrrr. Anyone know how long pellets typically last?" 
3. Minor Surgery. As mentioned above, pellets are not simply an
injection but rather a minor surgery. A local anesthetic is applied, a small
incision made and then a special "hollowed out needle" is used to insert the
pellets. Minor bleeding and bruising are relatively common. One of our
other posters and myself had a pretty miserable experience with pellets. I
was hurtin' for about five days and could not really exercise. What I have
heard is that it is somewhat dependent on how much body fat you have. (I'm
a "Skinny Bastard.")
4. Expense. My understanding is that currently most insurance carriers do
not cover pellets for standard hypogonadal (clinically low testosterone)
treatment and these pellets, though the size of a grain of rice, are not cheap:
about $25-40 apiece with 6-10 pellets being the most common dosage. Reimbursement for the office visit may or may not be
possible as well.
5. Sure, You’re Stuck. Some men have negative reactions to testosterone therapy, such as elevated blood pressure, depression or anxiety. Some men even have sexual side effects. If you are taking a topical, you stop immediately and it clears out of your system quickly. The same thing with injectables such as cypionate and enanthate. But what are you going to do with pellets?
6. Pre-Medicate with Antibiotics. I think one of the biggest disadvantabes is that many urologists will push you to take an antibiotic a day or two before the procedure. Why? Because infections are fairly common. Everyone has a different feeling about this, but I do not like to take antibiotics unless absolutely necessary, because they often harm your all-important gut flora
NOTE: Of course, testosterone pellets have all of the common side effects
that other HRT options have, including decreased fertility, acne, (possibly)
apnea, etc. For more information, see my links on The Safety of HRT and
Testosterone Therapy Side Effects.
The good news: the technology for pellets has greatly improved and most of
the side effects listed in #1 have been greatly reduced with the new Testopel
pellets. For example, one recent study showed extrusion and infection rates of
only 0.3%, an admirable improvement to say the least.  Although the study was
sponsored by the manufacturer, I think everyone agrees that these pellets are a
significant advance over the prior, being smaller and with more tight quality
control for contaminants leading to infection.
NEWS FLASH: Golfer Doug Barron used Testopel for his hypogonadism only to
find that the PGA labelled him as "doping", i.e. accused him of cheating.
However, Doug Barron sued and was eventually granted a PGA Therapeutic Use Exclusion. 
Doug has almost $3 million in earnings making him one of the top hypogonadal
athletes that we know about.
This now makes pellets a very convenient option for those who feel they can afford it: nice, steady blood levels of testosterone for months at a time with little additional time commitment. In addition, there are no worries
about accidently getting some of the product on the wife and kids, a potential
issue with Testim and Androgel, who now have a black box FDA warning
requirement. Talk to your doctor if interested of course.
Urology Times, Apr 15 2009, 37(5):S8(8), "Long acting testosterone therapy"
2) Clin Endocrinol (Oxf), 1999 Oct, 51(4):469-71, "Extrusion of testosterone
pellets: a randomized controlled clinical study"
3) The Journal of Sexual Medicine, Nov 2009, 6(11):3177-3192, "Subcutaneous
Testosterone Pellet Implant (Testopel®) Therapy for Men with Testosterone
Deficiency Syndrome: A Single-Site Retrospective Safety Analysis"