Chemical used in vaginal sponge is
Vaginal sponge is a small polyurethane foam sponge saturated with spermicide, nonoxynol-9 It comes under barrier method of contraception Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 495
Ethynil estradiol
Progesterone
Mifepristone
Nonoxynol-9
Demography and family planning