title: Contraceptive discovery: mandelic acid can be used as a spermicide.
abstract: Sperms can be quickly and effectively killed by the mandelic acid which is extracted from peach leaves or of the synthetic kind, according to a research project undertaken by Prof. Guo Renyu and Prof. Zhang Minru of Xi'an Medical University.  This discovery has been recognized by the Ministry of Public Health.  The findings of the research jointly undertaken by the Embryological and Parasitic teaching and Research Sections of Xi'an Medical University indicate that the mandelic acid is effective in killing both sperms and trichomoniasis.  It is as effective in killing both sperms and trichomoniasis.  It is as effective as nonoxynol-9 in devitalizing sperms and can also achieve the same clinical effect of contraception.  It is 2 to 5 times as effective as metronidazole in curing trichomoniasis vaginitis.  The research findings show that the mandelic acid will neither incur side-effects of mutation and malformation of fetus nor ill effects on livers, kidneys, and other viscera.  It will not disturb the normal activities of bacteria in the vagina and little is to be absorbed by the body.  Moreover, it will not provoke any stimulation to mucosa of the vagina.
mesh_terms: D001208:Asia; D055598:Chemical Phenomena; D002621:Chemistry; D002681:China; D003267:Contraception; D003270:Contraceptive Agents; D003906:Developing Countries; D005193:Family Planning Services; D005202:Asia, Eastern; D009930:Organic Chemicals; D013089:Spermatocidal Agents
chemical_list: D003270:Contraceptive Agents; D009930:Organic Chemicals; D013089:Spermatocidal Agents
keywords: Asia; China; Contraception; Contraception Research; Contraceptive Agents; Developing Countries; Eastern Asia; Family Planning; Ingredients And Chemicals; Organic Chemicals; Spermicidal Contraceptive Agents