Materials, products and services - the Green Guide Online provides details of the life cycle environmental impacts of construction materials and components, and the Green Book is a free online database of products and services.
Spermicides are used globally for birth control, with or without condoms. As the only means of birth control, spermicides are rarely effective. However, in conjunction with condoms, spermicides are somewhat effective in birth control.
1 Before you put the diaphragm over the cervix (opening to the uterus), a spermicide cream, foam, gel, or jelly should be put into the cup of the diaphragm. 2  Follow the manufacturer's directions on how much spermicide to use and how long before sexual intercourse you may apply the spermicide.