I have ben throwing away whatever HCG i have left after 4 weeks
Just a side note Heavyiron posted a really convincing piece of research regarding HCG use and correct dosing, i have adjusted my dosing plan after reading it, full props to heavy for bringing this to peoples attention.
Heavyiron's Post :
We know for a fact that a man on Testosterone needs about 300iu HCG EOD to maintain ITT levels. This is about 1,050iu HCG weekly or 525iu HCG twice per week. We also know for a fact that HCG is dose dependant so the more you use the more it works in healthy men.
Low-Dose Human Chorionic Gonadotropin Maintains Intratesticular Testosterone in Normal Men with Testosterone-Induced Gonadotropin Suppression
Andrea D. Coviello, Alvin M. Matsumoto, William J. Bremner, Karen L. Herbst, John K. Amory, Bradley D. Anawalt, Paul R. Sutton, William W. Wright, Terry R. Brown, Xiaohua Yan, Barry R. Zirkin and Jonathan P. Jarow
Center for Research in Reproduction and Contraception, Geriatric Research Education and Clinical Center, Veteran Affairs Puget Sound Health Care System (A.M.M.), and Department of Medicine, University of Washington School of Medicine (A.D.C., W.J.B., J.K.A., B.D.A., P.R.S.), Seattle, Washington 98195; Department of Medicine, Charles R. Drew University (K.L.H.), Los Angeles, California 90059; Department of Urology, Johns Hopkins University School of Medicine (X.Y., J.P.J.), Baltimore, Maryland 21287; and Division of Reproductive Biology, Department of Biochemistry and Molecular Biology Johns Hopkins University School of Public Health (W.W.W., T.R.B., X.Y., B.R.Z., J.P.J.), Baltimore, Maryland 21205
Address all correspondence and requests for reprints to: Dr. Andrea D. Coviello, Feinberg School of Medicine, Northwestern University, Tarry 15-751, 303 East Chicago Avenue, Chicago, Illinois 60611-3008. E-mail:
a-coviello@northwestern.edu.
In previous studies of testicular biopsy tissue from healthy men, intratesticular testosterone (ITT) has been shown to be much higher than serum testosterone (T), suggesting that high ITT is needed relative to serum T for normal spermatogenesis in men. However, the quantitative relationship between ITT and spermatogenesis is not known. To begin to address this issue experimentally, we determined the dose-response relationship between human chorionic gonadotropin (hCG) and ITT to ascertain the minimum dose needed to maintain ITT in the normal range. Twenty-nine men with normal reproductive physiology were randomized to receive 200 mg T enanthate weekly in combination with either saline placebo or 125, 250, or 500 IU hCG
every other day for 3 wk. ITT was assessed in testicular fluid obtained by percutaneous fine needle aspiration at baseline and at the end of treatment. Baseline serum T (14.1 nmol/liter) was 1.2% of ITT (1174 nmol/liter). LH and FSH were profoundly suppressed to 5% and 3% of baseline, respectively, and ITT was suppressed by 94% (1234 to 72 nmol/liter) in the T enanthate/placebo group. ITT increased linearly with increasing hCG dose (P < 0.001). Posttreatment ITT was 25% less than baseline in the 125 IU hCG group, 7% less than baseline in the 250 IU hCG group, and
26% greater than baseline in the 500 IU hCG group. These results demonstrate that relatively low dose hCG maintains ITT within the normal range in healthy men with gonadotropin suppression. Extensions of this study will allow determination of the ITT concentration threshold required to maintain spermatogenesis in man.
full study;
Low-Dose Human Chorionic Gonadotropin Maintains Intratesticular Testosterone in Normal Men with Testosterone-Induced Gonadotropin Suppression -- Coviello et al. 90 (5): 2595 -- Journal of Clinical Endocrinology & Metabolism