Tip - Copper IUDs & Weight Loss | LIVESTRONG.COM

The copper IUD sold in the United States under the name Paragard is a highly-effective, hormone-free method of birth control. An IUD is a plastic, T-shaped device that is inserted into and removed from the uterus by a health care provider. Paragard works to prevent pregnancy by releasing copper ions in the uterus; the copper prevents sperm from...