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  • Title: Spermatogenesis in men treated with injections of medroxyprogesterone acetate combined with testosterone enanthate.
    Author: Frick J, Danner C, Kunit G, Joos H, Köhle R.
    Journal: Int J Androl; 1982 Jun; 5(3):246-52. PubMed ID: 7118265.
    Abstract:
    The effects of a combination of medroxyprogesterone acetate and testosterone enanthate, on the exocrine and endocrine testicular function were examined in adult men. The treatment was carried out with 2 different regimens and lasted for 8 months. Group I received an initial injection of 1000 mg medroxyprogesterone acetate and 500 mg testosterone enanthate followed by monthly maintenance dose of 150 mg medroxyprogesterone acetate and 500 mg testosterone enanthate. In group II, after an initial high dose of 1000 mg medroxyprogesterone acetate and 250 mg testosterone enanthate treatment was given as biweekly injections of 75 mg medroxyprogesterone acetate and 250 mg testosterone enanthate. Complete spermatogenic arrest of variable duration was achieved in all 9 subjects enrolled. Restoration of spermatogenesis occurred in both groups, in a few cases during the treatment, and there was a delay of full recovery of sperm counts up to 5 months after cessation of therapy. None of the subjects enrolled in this study complained of decrease in libido or change in sexual behaviour. Clinical evaluation and measurements of various urine and serum components revealed no significant changes during the treatment period. The dosage and the different administration schedule of the hormone combination described here was inadequate to maintain azoospermia in all subjects during treatment.
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