Question

(a) Name any two copper releasing IUDs.
(b) Explain how do they acts as effective contraceptive in human females.

Answer 1

(a) The copper releasing IUDs are Cu-T, Cu-7 and multiload 375.

(b) Cu-releasing IUDs act by increasing phagocytosis of sperms within the uterus. The Cu${}^{2+}$ ions released suppresses sperm motility as well as their fertilizing capacity, thus preventing contraception. Thus, they are effective contraceptives in human females.