What are the types of intrauterine devices (IUDs) available and their mechanisms of action? The IUDs can be classified into three main groups: non...

What are the types of intrauterine devices (IUDs) available and their mechanisms of action?

The IUDs can be classified into three main groups: non-medicated, medicated or copper, and hormonal.
The Tcu380A is the most effective copper device available, and it can be effective for up to 12 years.
The frameless IUD was developed to avoid problems related to the device's frame and still maintains the properties of the copper IUD.
The main mechanism of action of the IUD is the prevention of fertilization, and the copper IUD is associated with an increased inflammatory response.
a) I, II, III and IV are correct.
b) I, II and III are correct.
c) II, III and IV are correct.
d) I and IV are correct.