January 2026 in “Journal of Sexual and Mental Health” This study reports that two oral hormonal agents, dimethandrolone undecanoate and 11β-methylnortestosterone dodecylcarbonate, may effectively suppress hormones to contraceptive levels in men with mild side effects, though longer-term trials are required to confirm their safety and efficacy.
January 2014 in “Side effects of drugs annual” This review discusses the 2011 publications on the side effects of sex hormones and related compounds, without reporting new clinical results.
September 2023 in “Biology of reproduction” This study suggests that the testosterone analogs 7α-Methyltestosterone and 7α-Ethyltestosterone may offer promising androgenic, progestogenic, and anabolic properties for development as male contraceptives.
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July 2003 in “Andrology” This review evaluates previous studies on androgen-progestin combinations for male contraception, concluding that long-acting injectable formulations appear promising due to their effectiveness and minimal short-term adverse effects.
March 2024 in “BMC women's health” This study found that free testosterone levels were 29% higher with the levonorgestrel implant than with the DMPA injection, which may impact sexual function, mood, and side effects like acne.