Below is a white paper published by Dr. Gary Donovitz the founder of BioTE:
Sub-Cutaneous Hormone Pellet Therapy- The
Comprehensive Treatment to Optimize and Balance
Hormones Using the BioTE Method
GARY S. DONOVITZ, M.D., F.A.C.O.G.
The BioTE method of hormone replacement is a time tested method of hormone
optimization that was created from the hundreds of studies performed on hundreds of
thousands of patients worldwide to successfully optimize the hormone levels of women
as they meander through the “seasons” of peri-menopause and menopause and men as
the traverse the “season” of andropause.
After monitoring outcomes for tens of thousands of men and women who have
benefited from this therapy, we have found results have been better than expected
with more than 96% of patients satisfied and with side effects much less than that
quoted in literature.
Hormone replacement therapy (HRT) is used to treat menopausal symptoms in women
and andropause symptoms in males. Most women who take HRT for menopausal
reasons are given an estrogen/progesterone/testosterone combination, except those
who have had a hysterectomy, as they may not need progesterone. HRT has shown to
reduce fatigue, improve sleep, improve libido in women and sexual performance in
men, decrease muscle loss and reduce body fat (Staland 78, Thom 81, Brincat 84, and
Davis 95). It also has been shown to reduce irritability, anxiety and depression. The
symptoms of osteoarthritis and rheumatoid arthritis are significantly reduced. Long
term, men and women will have reduced incidence of Alzheimer’s disease, heart
disease, and osteoporosis (Studd 90, Sands 97, Worboys 00). There are multiple studies
showing the long term reduction in breast cancer in women using pellet therapy
(Notelovitz 04, Glaser 2013) 02) rather than the increase in the incidence of breast
cancer that has been associated with oral, synthetic methyl-testosterone (Tamimi 06).
Even after over 20 years of therapy with hormone implants, the risk of breast cancer is
not increased (Gambrell 06).
Hormone replacement therapy by pellet implantation has been used with great success
in the United States, Europe and Australia since 1938, and has been found to be
superior to other methods of hormone delivery (Greenblatt49, Mishnell 41, Stanczyk
88). It is not experimental. Pellets deliver consistent physiologic levels of hormones and
avoid the fluctuations of hormone levels seen with other methods of delivery like pills,
creams, gels and injections (Greenblatt 49, Thom 81, Stanczyk 88). Pellets are superior
to oral and topical hormone therapy with respect to relief of menopausal symptoms
(Staland 78, Cardoza 84).
Hormones delivered by the subcutaneous implants bypass the liver, do not affect
clotting factors and do not increase the risk of thrombosis (Notelovitz 87).
Testosterone and estradiol delivered by pellet implantation, does not adversely affect
blood pressure, glucose or liver functions (Burger 84, Barlow 86, Notelovitz 84, Stanczyk
88, Davis 95, Sands 97, Seed 00, Cravioto 01). In fact, testosterone and estradiol
improved lipid profiles by reducing cholesterol, reducing triglycerides, and increasing
HDL cholesterol (Davis 05). This has positive benefits on the cardiovascular system.
Hormone replacement therapy with estradiol and testosterone implants is superior to
oral and topical (both the patch and gel) hormone replacement therapy for bone density
(Savvas 88, 92, Davis 95, Anderson 97). The pellets not only prevent bone loss but also
actually increase bone density (Savvas 88, Studd 90, Garnett 91, Savvas 92, Naessen 93,
Holland 94, Studd 94, Davis 95, and Anderson 97).
Testosterone replacement therapy in men with subcutaneous implants (pellets) has
been shown to be extremely effective, convenient and safe (Handelsman 90, 92, 97,
Kelleher 01, 04, Conway 88,Jockenhoval 96, Zacharin 03, Schubert 03, Dunning 04). The
continuation rate continues to be 93% or above. This is excellent for long term
compliance and exceeds the continuation seen with all other treatments for
The routine doses of testosterone delivered by pellet implantation in recent studies are
between 1000 and 2400 mg in men. The pharmacokinetics and pharmacodynamics are
well established showing that these doses deliver reproducible physiologic levels of
testosterone for 4-6 months. A 6-9 mg daily production of testosterone is a ‘physiologic’
level produced by the testicle. Peak serum testosterone levels with the implants are
usually seen at month one. Therapeutic testosterone levels at month one, are expected
at the upper limits of normal for healthy young males (900-1100 ng/dL). These levels are
necessary to protect the brain from Alzheimer’s disease, diabetes, heart disease,
prostate cancer, osteoporosis and all-cause mortality (Zitzman M. J Clin Endocrinology
2006). By month 4 to 5 testosterone levels drop to below 500-600 ng/dL at which time
symptoms return and the pellets are reinserted. Each individual has their own
reproducible levels where symptoms return.
Testosterone implants have been used in women in 5 continents for decades. Doses
used in studies are as low as 50 mg and up to 225 mg Glaser and Dimitrakakis Maturitas:
2004). Normal testosterone levels are not established in females (Fertility and Sterility
2002). Symptoms return when testosterone levels reach the lower end of endogenous
ranges (Burger 85). End organ response to testosterone remains optimal (i.e., relief of
depression, increase in bone density, relief from insomnia, relief from aches and pains,
lessened anxiety, improved memory and concentration, increased energy, etc.) when
testosterone levels at 4-6 weeks after pellet insertion are 150-250 ng/dL. Steady state is
subsequently is achieved at approximately half of these levels equaling 80-120 ng/dL,
which is in the physiologic to slightly supra-physiologic range. It is of primary
importance to titrate the dose to achieve symptom relief and minimize side effects,
not to achieve some phantom blood level. As women age, testosterone receptors
become less responsive and more often than not, higher levels of testosterone are
required to achieve the clinical outcome desired of symptom relief and long-term
protection to the brain, breast, heart and bones. Some women require upwards of 300
ng/dl to achieve these results. Side effects from testosterone therapy in women are
more of a nuisance and are reversible; there are no known long-term adverse effects in
women, even at supra-physiologic levels.
Patient compliance becomes a non-issue using the pellet modality.
The method of sub-cutaneous hormone replacement therapy has been consistent
throughout the literature. What was needed was a refinement of the pellets
themselves. BioTE Medical has established the “gold standard” in pellet preparation.
We standardized the process and then used independent labs to assure proper density,
purity, potency, sterility, dissolution rate, solubility and temperature tolerance; all of
which significantly affect how well a patient responds to the therapy. This extensive
safeguard allows us to supply pellets with only 3% tolerance for potency (i.e. our pellets
when prescribed will nearly match that requested). This is in contrast to prescribed pills
and creams which may have 10-30% tolerance. We use no fillers in our compounded
pellets and as such purity testing is superior. No pellets are dispensed until sterility is
certified and assured.
The literature is substantial supporting sub-cutaneous hormone pellet therapy as the
superior method of hormone replacement in men and women. By using the BioTE
dosing site (which is based on 30 years of clinical experience), by using the highest
quality pellets made in the United States, and by continuing to educate, supervise and
monitor all BioTE practitioners, we at BioTE have made pellet therapy the superior
method now available to practitioners and patients across the country. This has
established the new standard of care for HRT.
BioTE has created innovative and industry leading protocols and processes in properly
balancing hormones using not only Estradiol, Testosterone, and Progesterone, but also
natural support supplements like Vitamins A, D, K, Iodine and DIM. The BioTE Method
also aggressively treats thyroid conditions, as those contribute greatly to overall
hormone balance and the well-being of the patient. All serum levels are tracked pre and
post insertion as well as annually.
BioTE tracks and monitors nearly 100,000 procedures performed annually by our
network of Certified Practitioners throughout the United States and Puerto Rico. Any
and all complications that may arise are also tracked and include conditions such as
breast cancer, stroke, heart attacks, DVTs, endometrial cancer and prostate cancer.
Finally, BioTE recognizes there are many medical practitioners that are “experimenting
with pellet therapy,” and they have had varied (sometimes even disastrous) results.
After all, the only thing between medicine and poison is the dose (Aspirin can be bad if
taken improperly). However, BioTE provides all of our practitioners extensive clinical
and didactic training, as well as 24/7 dosing support thus ensuring the highest safety
and efficacy and results for our patients.
For more info on BioTE Medical please contact email@example.com or visit