The contraceptive pessary is a common contraceptive drug nowadays, before intercourse the contraceptive pessary is placed inside the vagina, about 5-10 minutes the pessary will gradually dissolve, then you can have intercourse. The contraceptive pessary drug also has some spermicidal elements inside, such as nonyl phenyl ether and other substances, which will have a certain braking effect on the osmotic pressure of sperm after being released inside the uterine cavity, and can play a contraceptive effect, not only to prevent sperm activity, but also to affect the quality of sperm. Not for everyone, its contraceptive effect is not very high, in the use of more convenient, but the use is not too widespread, so in the use of contraceptive suppositories, must pay attention to always observe the physical symptoms to avoid abnormal problems, it is recommended to do a good job related to contraception during intercourse.