Oral Testosterone in Oil: Pharmacokinetic Effects of 5α-Reduction by Finasteride or Dutasteride and Food Intake in Men

    January 2006 in “ International Journal of Andrology ”
    John K. Amory, Stephanie T. Page, William J. Bremner
    Studysummary This study found that coadministration of 5α-reductase inhibitors with oral testosterone in oil significantly increases serum testosterone levels in medically castrated men compared to testosterone alone, with food intake minimally affecting these levels.
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    Research cited in this study 1

    1. Marked Suppression of Dihydrotestosterone in Men with Benign Prostatic Hyperplasia by Dutasteride, a Dual 5α-Reductase Inhibitor ˜The œJournal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism · 2004

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    1. The Importance of Dual 5α-Reductase Inhibition in the Treatment of Male Pattern Hair Loss: Results of a Randomized Placebo-Controlled Study of Dutasteride Versus Finasteride Journal of The American Academy of Dermatology · 2006
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    3. Marked Suppression of Dihydrotestosterone in Men with Benign Prostatic Hyperplasia by Dutasteride, a Dual 5α-Reductase Inhibitor ˜The œJournal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism · 2004
    4. Effect of Finasteride, a 5 Alpha-Reductase Inhibitor, on Serum Gonadotropins in Normal Men The Journal of Clinical Endocrinology and Metabolism · 1992