发明授权
US5196197A Reversible fertility control for prevention of pregnancy in females 失效
用于预防女性怀孕的可逆生育控制

Reversible fertility control for prevention of pregnancy in females
摘要:
There is provided a means for reversible fertility control for prevention of pregnancy in female mammals for several months through the use of neem oil or its components, applied locally to the uterus. There is also provided a spermicidal composition containing neem oil or its components in combination with reetha extract as a vaginal cream.
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