杀精子制剂
杀精子制剂是借由杀死精子而达到防止受精的化学物质制成品。它的种类有阴道泡沫剂、阴道乳膏、阴道凝胶剂、阴道发泡片或栓剂等，其制成品在药店有售。某些女性对某些品牌的杀精子制剂有过敏反应。如果有过敏的话，应该去看医生，听取医生的专业咨询。如果用杀精子制剂避孕失败而怀孕，胎儿决不会受到影响。

Contraception

Methods of Contraception: Contraceptive Methods for Women

Spermicides
Spermicides are chemical substances that kill sperm cells and thus prevent any possible fertilization. Spermicidal preparations are available in drug stores without prescription as vaginal foams, creams, jellies, foaming tablets or suppositories. Some brands of spermicides may cause allergic reactions in some women. In these cases, a doctor should be consulted, Should a spermicidal preparation fail and pregnancy occur, the baby will in no way be affected.