Why is there no male contraceptive – Sohu Technology www.osta.org.cn

Why is there no male contraceptive? Sohu, science and technology in recent decades, a variety of methods: female contraceptive pill, patch, contraceptive sponge, contraceptive diaphragm, depo Provera injection, etonogestrel ethinyl estradiol vaginal ring and IUD or contraceptive ring…… However, only male condoms and vasectomy two choices. Men are not willing to try new methods of contraception. The research and development of a male contraceptive is very slow, too much research or nothing, or give up halfway. Men are not willing to try new methods of contraception. The research and development of a male contraceptive is very slow, too much research or nothing, or give up halfway. Researchers said the male contraceptive entering the market there are two challenges: first, physiologically, prevent millions of sperm production per day for men than women, prevent monthly egg release more difficult. Secondly, the lack of financial support for clinical trials of such drugs. In October, a study funded by the WHO found that men were significantly less likely to have a partner’s pregnancy by injecting hormonal contraception. However, there is a higher probability of side effects, such as acne, increased libido, mood swings, etc.. One of the authors of the research, a nonprofit research organization Conrad (Conrad) project manager Douglas · (Douglas Colvard); Ke Howard said that this is a mixture of the hormone progesterone and testosterone and is not satisfactory. Neither the World Health Organization nor Conrad has sufficient funds to support further clinical trials. At present, the most common male contraceptive research idea is that through the inhibition of sexual hormones in male sperm production, this research has been carried out for 40 years. It is worth mentioning that the Chinese Zhejiang Xianju pharmaceutical factory in 1045 Chinese men have tried new injectable hormonal contraceptive methods, this method can effectively and reversibly inhibit sperm production. But the company did not carry out further experiments, this injection has not been approved by the regulatory authorities. Washington male contraceptive initiative managing director Aaron · Hamlin (Aaron Hamlin) said, "to a certain extent, pharmaceutical companies rarely participate in this kind of research, because they are disappointed with the failure of past hormone drugs". For example, in 2002 the German pharmaceutical company Schering pharmaceutical company of Holland (Schering) and Ou Jianong (Organon) to develop a hormonal male contraceptive, a few years after the failure of the. The director of the University of Minnesota Department of chemistry, medicine gonda (Gunda Georg) · Josie said, before the failure and potential side effects based on the great hope she is not hormonal male contraception. On the contrary, her lab is working on a non hormonal male contraceptive — Danzuo million. 000 Danzuo can prevent sperm development, immature sperm rupture after "sperm factory" testicular re absorption, blocking sperm production. The drug has been successfully tested in mice and can be used effectively and reversibly. Give orders相关的主题文章: